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yahoo-groups-backup install failure
➜  yahoo-groups-backup git:(master) pip3 install -r requirements.txt
Requirement already satisfied: docopt==0.6.2 in /usr/local/lib/python3.7/site-packages (from -r requirements.txt (line 1)) (0.6.2)
Requirement already satisfied: pymongo==3.2.2 in /usr/local/lib/python3.7/site-packages (from -r requirements.txt (line 2)) (3.2.2)
Requirement already satisfied: python-dateutil==2.5.3 in /usr/local/lib/python3.7/site-packages (from -r requirements.txt (line 3)) (2.5.3)
Collecting pyyaml==3.11
  Using cached https://files.pythonhosted.org/packages/75/5e/b84feba55e20f8da46ead76f14a3943c8cb722d40360702b2365b91dec00/PyYAML-3.11.tar.gz
Collecting requests==2.10.0
  Using cached https://files.pythonhosted.org/packages/99/b4/63d99ba8e189c47d906b43bae18af4396e336f2b1bfec86af31efe2d2cb8/requests-2.10.0-py2.py3-none-any.whl
Processing /Users/trobbins/Library/Caches/pip/wheels/da/6f/e5/dc3f5a59d16fd7af433de8819e83ebfb0a3b04773f1c8f0fb8/schema-0.5.0-cp37-none-any.whl
Collecting selenium==2.53.5
  Using cached https://files.pythonhosted.org/packages/24/1d/9e7cba7fd1f92d9aaf4fc83fd7d27b2a92dadfd4400dca443c79764100dc/selenium-2.53.5-py2.py3-none-any.whl
Processing /Users/trobbins/Library/Caches/pip/wheels/70/83/42/3652c0602e17f5ee396bfac62c095fa6c8eb85fc199775a544/splinter-0.7.3-cp37-none-any.whl
Requirement already satisfied: six>=1.5 in /usr/local/lib/python3.7/site-packages (from python-dateutil==2.5.3->-r requirements.txt (line 3)) (1.13.0)
Building wheels for collected packages: pyyaml
  Building wheel for pyyaml (setup.py) ... error
  ERROR: Command errored out with exit status 1:
   command: /usr/local/opt/python/bin/python3.7 -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/9b/2lxznqc5477dnpf6glf5tvv00000gn/T/pip-install-tvauk7fm/pyyaml/setup.py'"'"'; __file__='"'"'/private/var/folders/9b/2lxznqc5477dnpf6glf5tvv00000gn/T/pip-install-tvauk7fm/pyyaml/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /private/var/folders/9b/2lxznqc5477dnpf6glf5tvv00000gn/T/pip-wheel-63qybkku --python-tag cp37
       cwd: /private/var/folders/9b/2lxznqc5477dnpf6glf5tvv00000gn/T/pip-install-tvauk7fm/pyyaml/
  Complete output (453 lines):
  running bdist_wheel
  running build
  running build_py
  creating build
  creating build/lib.macosx-10.15-x86_64-3.7
  creating build/lib.macosx-10.15-x86_64-3.7/yaml
  copying lib3/yaml/scanner.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
  copying lib3/yaml/error.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
  copying lib3/yaml/constructor.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
  copying lib3/yaml/composer.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
  copying lib3/yaml/events.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
  copying lib3/yaml/__init__.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
  copying lib3/yaml/representer.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
  copying lib3/yaml/tokens.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
  copying lib3/yaml/dumper.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
  copying lib3/yaml/cyaml.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
  copying lib3/yaml/parser.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
  copying lib3/yaml/reader.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
  copying lib3/yaml/loader.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
  copying lib3/yaml/resolver.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
  copying lib3/yaml/serializer.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
  copying lib3/yaml/nodes.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
  copying lib3/yaml/emitter.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
  running build_ext
  creating build/temp.macosx-10.15-x86_64-3.7
  checking if libyaml is compilable
  clang -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk/usr/include -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk/System/Library/Frameworks/Tk.framework/Versions/8.5/Headers -I/usr/local/include -I/usr/local/opt/openssl@1.1/include -I/usr/local/opt/sqlite/include -I/usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c build/temp.macosx-10.15-x86_64-3.7/check_libyaml.c -o build/temp.macosx-10.15-x86_64-3.7/check_libyaml.o
  checking if libyaml is linkable
  clang build/temp.macosx-10.15-x86_64-3.7/check_libyaml.o -L/usr/local/lib -L/usr/local/opt/openssl@1.1/lib -L/usr/local/opt/sqlite/lib -lyaml -o build/temp.macosx-10.15-x86_64-3.7/check_libyaml
  building '_yaml' extension
  creating build/temp.macosx-10.15-x86_64-3.7/ext
  clang -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk/usr/include -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk/System/Library/Frameworks/Tk.framework/Versions/8.5/Headers -I/usr/local/include -I/usr/local/opt/openssl@1.1/include -I/usr/local/opt/sqlite/include -I/usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c ext/_yaml.c -o build/temp.macosx-10.15-x86_64-3.7/ext/_yaml.o
  In file included from ext/_yaml.c:343:
  ext/_yaml.h:10:9: warning: 'PyString_CheckExact' macro redefined [-Wmacro-redefined]
  #define PyString_CheckExact PyBytes_CheckExact
          ^
  ext/_yaml.c:184:11: note: previous definition is here
    #define PyString_CheckExact          PyUnicode_CheckExact
            ^
  ext/_yaml.c:1346:17: warning: assigning to 'char *' from 'const char *' discards qualifiers [-Wincompatible-pointer-types-discards-qualifiers]
    __pyx_v_value = yaml_get_version_string();
                  ^ ~~~~~~~~~~~~~~~~~~~~~~~~~
  ext/_yaml.c:2471:52: warning: incompatible pointer types passing 'int (void *, char *, int, int *)' to parameter of type 'yaml_read_handler_t *' (aka 'int (*)(void *, unsigned char *, unsigned long, unsigned long *)') [-Wincompatible-pointer-types]
      yaml_parser_set_input((&__pyx_v_self->parser), __pyx_f_5_yaml_input_handler, ((void *)__pyx_v_self));
                                                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/local/include/yaml.h:1370:30: note: passing argument to parameter 'handler' here
          yaml_read_handler_t *handler, void *data);
                               ^
  ext/_yaml.c:2664:59: warning: passing 'char *' to parameter of type 'const unsigned char *' converts between pointers to integer types with different sign [-Wpointer-sign]
      yaml_parser_set_input_string((&__pyx_v_self->parser), PyString_AS_STRING(__pyx_v_stream), PyString_GET_SIZE(__pyx_v_stream));
                                                            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  ext/_yaml.h:11:29: note: expanded from macro 'PyString_AS_STRING'
  #define PyString_AS_STRING  PyBytes_AS_STRING
                              ^
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/bytesobject.h:87:31: note: expanded from macro 'PyBytes_AS_STRING'
  #define PyBytes_AS_STRING(op) (assert(PyBytes_Check(op)), \
                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/local/include/yaml.h:1344:30: note: passing argument to parameter 'input' here
          const unsigned char *input, size_t size);
                               ^
  ext/_yaml.c:4183:38: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
      __pyx_t_3 = PyUnicode_FromString(__pyx_v_token->data.tag_directive.handle); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 417; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
      const char *u              /* UTF-8 encoded string */
                  ^
  ext/_yaml.c:4195:38: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
      __pyx_t_3 = PyUnicode_FromString(__pyx_v_token->data.tag_directive.prefix); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 418; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
      const char *u              /* UTF-8 encoded string */
                  ^
  ext/_yaml.c:4741:38: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
      __pyx_t_3 = PyUnicode_FromString(__pyx_v_token->data.alias.value); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 448; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
      const char *u              /* UTF-8 encoded string */
                  ^
  ext/_yaml.c:4792:38: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
      __pyx_t_4 = PyUnicode_FromString(__pyx_v_token->data.anchor.value); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 451; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
      const char *u              /* UTF-8 encoded string */
                  ^
  ext/_yaml.c:4843:38: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
      __pyx_t_3 = PyUnicode_FromString(__pyx_v_token->data.tag.handle); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 454; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
      const char *u              /* UTF-8 encoded string */
                  ^
  ext/_yaml.c:4855:38: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
      __pyx_t_3 = PyUnicode_FromString(__pyx_v_token->data.tag.suffix); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 455; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
      const char *u              /* UTF-8 encoded string */
                  ^
  ext/_yaml.c:4938:38: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
      __pyx_t_2 = PyUnicode_DecodeUTF8(__pyx_v_token->data.scalar.value, __pyx_v_token->data.scalar.length, __pyx_k_strict); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 460; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:1299:17: note: passing argument to parameter 'string' here
      const char *string,         /* UTF-8 encoded string */
                  ^
  ext/_yaml.c:5559:134: warning: code will never be executed [-Wunreachable-code]
      __pyx_t_5 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_4); __Pyx_INCREF(__pyx_t_5); __pyx_t_4++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 504; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                                                                                                                       ^~~~~~~
  ext/_yaml.c:6435:42: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
          __pyx_t_4 = PyUnicode_FromString(__pyx_v_tag_directive->handle); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 574; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
      const char *u              /* UTF-8 encoded string */
                  ^
  ext/_yaml.c:6447:42: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
          __pyx_t_4 = PyUnicode_FromString(__pyx_v_tag_directive->prefix); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 575; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
      const char *u              /* UTF-8 encoded string */
                  ^
  ext/_yaml.c:6616:38: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
      __pyx_t_2 = PyUnicode_FromString(__pyx_v_event->data.alias.anchor); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 586; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
      const char *u              /* UTF-8 encoded string */
                  ^
  ext/_yaml.c:6687:40: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_1 = PyUnicode_FromString(__pyx_v_event->data.scalar.anchor); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 591; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
      const char *u              /* UTF-8 encoded string */
                  ^
  ext/_yaml.c:6722:40: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_1 = PyUnicode_FromString(__pyx_v_event->data.scalar.tag); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 594; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
      const char *u              /* UTF-8 encoded string */
                  ^
  ext/_yaml.c:6737:38: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
      __pyx_t_1 = PyUnicode_DecodeUTF8(__pyx_v_event->data.scalar.value, __pyx_v_event->data.scalar.length, __pyx_k_strict); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 595; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:1299:17: note: passing argument to parameter 'string' here
      const char *string,         /* UTF-8 encoded string */
                  ^
  ext/_yaml.c:7031:40: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_3 = PyUnicode_FromString(__pyx_v_event->data.sequence_start.anchor); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 620; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
      const char *u              /* UTF-8 encoded string */
                  ^
  ext/_yaml.c:7066:40: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_3 = PyUnicode_FromString(__pyx_v_event->data.sequence_start.tag); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 623; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
      const char *u              /* UTF-8 encoded string */
                  ^
  ext/_yaml.c:7253:40: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_2 = PyUnicode_FromString(__pyx_v_event->data.mapping_start.anchor); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 637; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
      const char *u              /* UTF-8 encoded string */
                  ^
  ext/_yaml.c:7288:40: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_2 = PyUnicode_FromString(__pyx_v_event->data.mapping_start.tag); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 640; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
      const char *u              /* UTF-8 encoded string */
                  ^
  ext/_yaml.c:7938:134: warning: code will never be executed [-Wunreachable-code]
      __pyx_t_5 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_4); __Pyx_INCREF(__pyx_t_5); __pyx_t_4++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 682; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                                                                                                                       ^~~~~~~
  ext/_yaml.c:8704:38: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
      __pyx_t_3 = PyUnicode_FromString(__pyx_v_self->parsed_event.data.alias.anchor); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 734; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
      const char *u              /* UTF-8 encoded string */
                  ^
  ext/_yaml.c:8924:38: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
      __pyx_t_6 = PyUnicode_FromString(__pyx_v_self->parsed_event.data.scalar.anchor); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 750; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
      const char *u              /* UTF-8 encoded string */
                  ^
  ext/_yaml.c:8962:38: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
      __pyx_t_6 = PyUnicode_FromString(__pyx_v_self->parsed_event.data.sequence_start.anchor); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 753; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
      const char *u              /* UTF-8 encoded string */
                  ^
  ext/_yaml.c:9000:38: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
      __pyx_t_6 = PyUnicode_FromString(__pyx_v_self->parsed_event.data.mapping_start.anchor); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 756; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
      const char *u              /* UTF-8 encoded string */
                  ^
  ext/_yaml.c:9532:36: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
    __pyx_t_2 = PyUnicode_DecodeUTF8(__pyx_v_self->parsed_event.data.scalar.value, __pyx_v_self->parsed_event.data.scalar.length, __pyx_k_strict); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 791; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:1299:17: note: passing argument to parameter 'string' here
      const char *string,         /* UTF-8 encoded string */
                  ^
  ext/_yaml.c:9688:38: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
      __pyx_t_9 = PyUnicode_FromString(__pyx_v_self->parsed_event.data.scalar.tag); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 804; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
      const char *u              /* UTF-8 encoded string */
                  ^
  ext/_yaml.c:10128:38: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
      __pyx_t_2 = PyUnicode_FromString(__pyx_v_self->parsed_event.data.sequence_start.tag); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 837; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
      const char *u              /* UTF-8 encoded string */
                  ^
  ext/_yaml.c:10654:38: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
      __pyx_t_2 = PyUnicode_FromString(__pyx_v_self->parsed_event.data.mapping_start.tag); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 876; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
      const char *u              /* UTF-8 encoded string */
                  ^
  ext/_yaml.c:11721:53: warning: incompatible pointer types passing 'int (void *, char *, int)' to parameter of type 'yaml_write_handler_t *' (aka 'int (*)(void *, unsigned char *, unsigned long)') [-Wincompatible-pointer-types]
    yaml_emitter_set_output((&__pyx_v_self->emitter), __pyx_f_5_yaml_output_handler, ((void *)__pyx_v_self));
                                                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /usr/local/include/yaml.h:1837:31: note: passing argument to parameter 'handler' here
          yaml_write_handler_t *handler, void *data);
                                ^
  ext/_yaml.c:12898:44: warning: assigning to 'yaml_char_t *' (aka 'unsigned char *') from 'char *' converts between pointers to integer types with different sign [-Wpointer-sign]
          __pyx_v_tag_directives_end->handle = PyString_AS_STRING(__pyx_v_handle);
                                             ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  ext/_yaml.c:12991:44: warning: assigning to 'yaml_char_t *' (aka 'unsigned char *') from 'char *' converts between pointers to integer types with different sign [-Wpointer-sign]
          __pyx_v_tag_directives_end->prefix = PyString_AS_STRING(__pyx_v_prefix);
                                             ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  ext/_yaml.c:13248:62: warning: passing 'char *' to parameter of type 'yaml_char_t *' (aka 'unsigned char *') converts between pointers to integer types with different sign [-Wpointer-sign]
      __pyx_t_4 = ((yaml_alias_event_initialize(__pyx_v_event, __pyx_v_anchor) == 0) != 0);
                                                               ^~~~~~~~~~~~~~
  /usr/local/include/yaml.h:555:63: note: passing argument to parameter 'anchor' here
  yaml_alias_event_initialize(yaml_event_t *event, yaml_char_t *anchor);
                                                                ^
  ext/_yaml.c:13824:63: warning: passing 'char *' to parameter of type 'yaml_char_t *' (aka 'unsigned char *') converts between pointers to integer types with different sign [-Wpointer-sign]
      __pyx_t_3 = ((yaml_scalar_event_initialize(__pyx_v_event, __pyx_v_anchor, __pyx_v_tag, __pyx_v_value, __pyx_v_length, __pyx_v_plain_implicit, __pyx_v_quoted_implicit, __pyx_v_scalar_style) == 0) != 0);
                                                                ^~~~~~~~~~~~~~
  /usr/local/include/yaml.h:581:22: note: passing argument to parameter 'anchor' here
          yaml_char_t *anchor, yaml_char_t *tag,
                       ^
  ext/_yaml.c:13824:79: warning: passing 'char *' to parameter of type 'yaml_char_t *' (aka 'unsigned char *') converts between pointers to integer types with different sign [-Wpointer-sign]
      __pyx_t_3 = ((yaml_scalar_event_initialize(__pyx_v_event, __pyx_v_anchor, __pyx_v_tag, __pyx_v_value, __pyx_v_length, __pyx_v_plain_implicit, __pyx_v_quoted_implicit, __pyx_v_scalar_style) == 0) != 0);
                                                                                ^~~~~~~~~~~
  /usr/local/include/yaml.h:581:43: note: passing argument to parameter 'tag' here
          yaml_char_t *anchor, yaml_char_t *tag,
                                            ^
  ext/_yaml.c:13824:92: warning: passing 'char *' to parameter of type 'yaml_char_t *' (aka 'unsigned char *') converts between pointers to integer types with different sign [-Wpointer-sign]
      __pyx_t_3 = ((yaml_scalar_event_initialize(__pyx_v_event, __pyx_v_anchor, __pyx_v_tag, __pyx_v_value, __pyx_v_length, __pyx_v_plain_implicit, __pyx_v_quoted_implicit, __pyx_v_scalar_style) == 0) != 0);
                                                                                             ^~~~~~~~~~~~~
  /usr/local/include/yaml.h:582:22: note: passing argument to parameter 'value' here
          yaml_char_t *value, int length,
                       ^
  ext/_yaml.c:14166:71: warning: passing 'char *' to parameter of type 'yaml_char_t *' (aka 'unsigned char *') converts between pointers to integer types with different sign [-Wpointer-sign]
      __pyx_t_4 = ((yaml_sequence_start_event_initialize(__pyx_v_event, __pyx_v_anchor, __pyx_v_tag, __pyx_v_implicit, __pyx_v_sequence_style) == 0) != 0);
                                                                        ^~~~~~~~~~~~~~
  /usr/local/include/yaml.h:604:22: note: passing argument to parameter 'anchor' here
          yaml_char_t *anchor, yaml_char_t *tag, int implicit,
                       ^
  ext/_yaml.c:14166:87: warning: passing 'char *' to parameter of type 'yaml_char_t *' (aka 'unsigned char *') converts between pointers to integer types with different sign [-Wpointer-sign]
      __pyx_t_4 = ((yaml_sequence_start_event_initialize(__pyx_v_event, __pyx_v_anchor, __pyx_v_tag, __pyx_v_implicit, __pyx_v_sequence_style) == 0) != 0);
                                                                                        ^~~~~~~~~~~
  /usr/local/include/yaml.h:604:43: note: passing argument to parameter 'tag' here
          yaml_char_t *anchor, yaml_char_t *tag, int implicit,
                                            ^
  ext/_yaml.c:14508:70: warning: passing 'char *' to parameter of type 'yaml_char_t *' (aka 'unsigned char *') converts between pointers to integer types with different sign [-Wpointer-sign]
      __pyx_t_3 = ((yaml_mapping_start_event_initialize(__pyx_v_event, __pyx_v_anchor, __pyx_v_tag, __pyx_v_implicit, __pyx_v_mapping_style) == 0) != 0);
                                                                       ^~~~~~~~~~~~~~
  /usr/local/include/yaml.h:636:22: note: passing argument to parameter 'anchor' here
          yaml_char_t *anchor, yaml_char_t *tag, int implicit,
                       ^
  ext/_yaml.c:14508:86: warning: passing 'char *' to parameter of type 'yaml_char_t *' (aka 'unsigned char *') converts between pointers to integer types with different sign [-Wpointer-sign]
      __pyx_t_3 = ((yaml_mapping_start_event_initialize(__pyx_v_event, __pyx_v_anchor, __pyx_v_tag, __pyx_v_implicit, __pyx_v_mapping_style) == 0) != 0);
                                                                                       ^~~~~~~~~~~
  /usr/local/include/yaml.h:636:43: note: passing argument to parameter 'tag' here
          yaml_char_t *anchor, yaml_char_t *tag, int implicit,
                                            ^
  ext/_yaml.c:12773:140: warning: code will never be executed [-Wunreachable-code]
            __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_5, __pyx_t_7); __Pyx_INCREF(__pyx_t_1); __pyx_t_7++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1064; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                                                                                                                             ^~~~~~~
  ext/_yaml.c:12766:139: warning: code will never be executed [-Wunreachable-code]
            __pyx_t_1 = PyList_GET_ITEM(__pyx_t_5, __pyx_t_7); __Pyx_INCREF(__pyx_t_1); __pyx_t_7++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1064; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                                                                                                                            ^~~~~~~
  ext/_yaml.c:15784:42: warning: assigning to 'yaml_char_t *' (aka 'unsigned char *') from 'char *' converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_v_tag_directives_end->handle = PyString_AS_STRING(__pyx_v_handle);
                                           ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  ext/_yaml.c:15877:42: warning: assigning to 'yaml_char_t *' (aka 'unsigned char *') from 'char *' converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_v_tag_directives_end->prefix = PyString_AS_STRING(__pyx_v_prefix);
                                           ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  ext/_yaml.c:15662:138: warning: code will never be executed [-Wunreachable-code]
          __pyx_t_3 = PyTuple_GET_ITEM(__pyx_t_2, __pyx_t_5); __Pyx_INCREF(__pyx_t_3); __pyx_t_5++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1319; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                                                                                                                           ^~~~~~~
  ext/_yaml.c:15655:137: warning: code will never be executed [-Wunreachable-code]
          __pyx_t_3 = PyList_GET_ITEM(__pyx_t_2, __pyx_t_5); __Pyx_INCREF(__pyx_t_3); __pyx_t_5++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1319; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                                                                                                                          ^~~~~~~
  ext/_yaml.c:16298:140: warning: code will never be executed [-Wunreachable-code]
            __pyx_t_3 = PyTuple_GET_ITEM(__pyx_t_4, __pyx_t_5); __Pyx_INCREF(__pyx_t_3); __pyx_t_5++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1369; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                                                                                                                             ^~~~~~~
  ext/_yaml.c:16291:139: warning: code will never be executed [-Wunreachable-code]
            __pyx_t_3 = PyList_GET_ITEM(__pyx_t_4, __pyx_t_5); __Pyx_INCREF(__pyx_t_3); __pyx_t_5++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1369; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                                                                                                                            ^~~~~~~
  ext/_yaml.c:16223:140: warning: code will never be executed [-Wunreachable-code]
            __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_5); __Pyx_INCREF(__pyx_t_4); __pyx_t_5++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1366; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                                                                                                                             ^~~~~~~
  ext/_yaml.c:16216:139: warning: code will never be executed [-Wunreachable-code]
            __pyx_t_4 = PyList_GET_ITEM(__pyx_t_3, __pyx_t_5); __Pyx_INCREF(__pyx_t_4); __pyx_t_5++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1366; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                                                                                                                            ^~~~~~~
  ext/_yaml.c:16616:65: warning: passing 'char *' to parameter of type 'yaml_char_t *' (aka 'unsigned char *') converts between pointers to integer types with different sign [-Wpointer-sign]
      __pyx_t_2 = ((yaml_alias_event_initialize((&__pyx_v_event), __pyx_v_anchor) == 0) != 0);
                                                                  ^~~~~~~~~~~~~~
  /usr/local/include/yaml.h:555:63: note: passing argument to parameter 'anchor' here
  yaml_alias_event_initialize(yaml_event_t *event, yaml_char_t *anchor);
                                                                ^
  ext/_yaml.c:17195:68: warning: passing 'char *' to parameter of type 'yaml_char_t *' (aka 'unsigned char *') converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_8 = ((yaml_scalar_event_initialize((&__pyx_v_event), __pyx_v_anchor, __pyx_v_tag, __pyx_v_value, __pyx_v_length, __pyx_v_plain_implicit, __pyx_v_quoted_implicit, __pyx_v_scalar_style) == 0) != 0);
                                                                     ^~~~~~~~~~~~~~
  /usr/local/include/yaml.h:581:22: note: passing argument to parameter 'anchor' here
          yaml_char_t *anchor, yaml_char_t *tag,
                       ^
  ext/_yaml.c:17195:84: warning: passing 'char *' to parameter of type 'yaml_char_t *' (aka 'unsigned char *') converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_8 = ((yaml_scalar_event_initialize((&__pyx_v_event), __pyx_v_anchor, __pyx_v_tag, __pyx_v_value, __pyx_v_length, __pyx_v_plain_implicit, __pyx_v_quoted_implicit, __pyx_v_scalar_style) == 0) != 0);
                                                                                     ^~~~~~~~~~~
  /usr/local/include/yaml.h:581:43: note: passing argument to parameter 'tag' here
          yaml_char_t *anchor, yaml_char_t *tag,
                                            ^
  ext/_yaml.c:17195:97: warning: passing 'char *' to parameter of type 'yaml_char_t *' (aka 'unsigned char *') converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_8 = ((yaml_scalar_event_initialize((&__pyx_v_event), __pyx_v_anchor, __pyx_v_tag, __pyx_v_value, __pyx_v_length, __pyx_v_plain_implicit, __pyx_v_quoted_implicit, __pyx_v_scalar_style) == 0) != 0);
                                                                                                  ^~~~~~~~~~~~~
  /usr/local/include/yaml.h:582:22: note: passing argument to parameter 'value' here
          yaml_char_t *value, int length,
                       ^
  ext/_yaml.c:17473:76: warning: passing 'char *' to parameter of type 'yaml_char_t *' (aka 'unsigned char *') converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_8 = ((yaml_sequence_start_event_initialize((&__pyx_v_event), __pyx_v_anchor, __pyx_v_tag, __pyx_v_implicit, __pyx_v_sequence_style) == 0) != 0);
                                                                             ^~~~~~~~~~~~~~
  /usr/local/include/yaml.h:604:22: note: passing argument to parameter 'anchor' here
          yaml_char_t *anchor, yaml_char_t *tag, int implicit,
                       ^
  ext/_yaml.c:17473:92: warning: passing 'char *' to parameter of type 'yaml_char_t *' (aka 'unsigned char *') converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_8 = ((yaml_sequence_start_event_initialize((&__pyx_v_event), __pyx_v_anchor, __pyx_v_tag, __pyx_v_implicit, __pyx_v_sequence_style) == 0) != 0);
                                                                                             ^~~~~~~~~~~
  /usr/local/include/yaml.h:604:43: note: passing argument to parameter 'tag' here
          yaml_char_t *anchor, yaml_char_t *tag, int implicit,
                                            ^
  ext/_yaml.c:17874:75: warning: passing 'char *' to parameter of type 'yaml_char_t *' (aka 'unsigned char *') converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_8 = ((yaml_mapping_start_event_initialize((&__pyx_v_event), __pyx_v_anchor, __pyx_v_tag, __pyx_v_implicit, __pyx_v_mapping_style) == 0) != 0);
                                                                            ^~~~~~~~~~~~~~
  /usr/local/include/yaml.h:636:22: note: passing argument to parameter 'anchor' here
          yaml_char_t *anchor, yaml_char_t *tag, int implicit,
                       ^
  ext/_yaml.c:17874:91: warning: passing 'char *' to parameter of type 'yaml_char_t *' (aka 'unsigned char *') converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_8 = ((yaml_mapping_start_event_initialize((&__pyx_v_event), __pyx_v_anchor, __pyx_v_tag, __pyx_v_implicit, __pyx_v_mapping_style) == 0) != 0);
                                                                                            ^~~~~~~~~~~
  /usr/local/include/yaml.h:636:43: note: passing argument to parameter 'tag' here
          yaml_char_t *anchor, yaml_char_t *tag, int implicit,
                                            ^
  ext/_yaml.c:17950:140: warning: code will never be executed [-Wunreachable-code]
            __pyx_t_6 = PyTuple_GET_ITEM(__pyx_t_5, __pyx_t_9); __Pyx_INCREF(__pyx_t_6); __pyx_t_9++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1508; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                                                                                                                             ^~~~~~~
  ext/_yaml.c:17943:139: warning: code will never be executed [-Wunreachable-code]
            __pyx_t_6 = PyList_GET_ITEM(__pyx_t_5, __pyx_t_9); __Pyx_INCREF(__pyx_t_6); __pyx_t_9++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1508; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                                                                                                                            ^~~~~~~
  ext/_yaml.c:17558:140: warning: code will never be executed [-Wunreachable-code]
            __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_7, __pyx_t_9); __Pyx_INCREF(__pyx_t_1); __pyx_t_9++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1477; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                                                                                                                             ^~~~~~~
  ext/_yaml.c:17551:139: warning: code will never be executed [-Wunreachable-code]
            __pyx_t_1 = PyList_GET_ITEM(__pyx_t_7, __pyx_t_9); __Pyx_INCREF(__pyx_t_1); __pyx_t_9++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1477; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                                                                                                                            ^~~~~~~
  ext/_yaml.c:20800:21: error: no member named 'exc_type' in 'struct _ts'
      *type = tstate->exc_type;
              ~~~~~~  ^
  ext/_yaml.c:20801:22: error: no member named 'exc_value' in 'struct _ts'; did you mean 'curexc_value'?
      *value = tstate->exc_value;
                       ^~~~~~~~~
                       curexc_value
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/pystate.h:240:15: note: 'curexc_value' declared here
      PyObject *curexc_value;
                ^
  ext/_yaml.c:20802:19: error: no member named 'exc_traceback' in 'struct _ts'; did you mean 'curexc_traceback'?
      *tb = tstate->exc_traceback;
                    ^~~~~~~~~~~~~
                    curexc_traceback
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/pystate.h:241:15: note: 'curexc_traceback' declared here
      PyObject *curexc_traceback;
                ^
  ext/_yaml.c:20814:24: error: no member named 'exc_type' in 'struct _ts'
      tmp_type = tstate->exc_type;
                 ~~~~~~  ^
  ext/_yaml.c:20815:25: error: no member named 'exc_value' in 'struct _ts'; did you mean 'curexc_value'?
      tmp_value = tstate->exc_value;
                          ^~~~~~~~~
                          curexc_value
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/pystate.h:240:15: note: 'curexc_value' declared here
      PyObject *curexc_value;
                ^
  ext/_yaml.c:20816:22: error: no member named 'exc_traceback' in 'struct _ts'; did you mean 'curexc_traceback'?
      tmp_tb = tstate->exc_traceback;
                       ^~~~~~~~~~~~~
                       curexc_traceback
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/pystate.h:241:15: note: 'curexc_traceback' declared here
      PyObject *curexc_traceback;
                ^
  ext/_yaml.c:20817:13: error: no member named 'exc_type' in 'struct _ts'
      tstate->exc_type = type;
      ~~~~~~  ^
  ext/_yaml.c:20818:13: error: no member named 'exc_value' in 'struct _ts'; did you mean 'curexc_value'?
      tstate->exc_value = value;
              ^~~~~~~~~
              curexc_value
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/pystate.h:240:15: note: 'curexc_value' declared here
      PyObject *curexc_value;
                ^
  ext/_yaml.c:20819:13: error: no member named 'exc_traceback' in 'struct _ts'; did you mean 'curexc_traceback'?
      tstate->exc_traceback = tb;
              ^~~~~~~~~~~~~
              curexc_traceback
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/pystate.h:241:15: note: 'curexc_traceback' declared here
      PyObject *curexc_traceback;
                ^
  ext/_yaml.c:20862:24: error: no member named 'exc_type' in 'struct _ts'
      tmp_type = tstate->exc_type;
                 ~~~~~~  ^
  ext/_yaml.c:20863:25: error: no member named 'exc_value' in 'struct _ts'; did you mean 'curexc_value'?
      tmp_value = tstate->exc_value;
                          ^~~~~~~~~
                          curexc_value
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/pystate.h:240:15: note: 'curexc_value' declared here
      PyObject *curexc_value;
                ^
  ext/_yaml.c:20864:22: error: no member named 'exc_traceback' in 'struct _ts'; did you mean 'curexc_traceback'?
      tmp_tb = tstate->exc_traceback;
                       ^~~~~~~~~~~~~
                       curexc_traceback
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/pystate.h:241:15: note: 'curexc_traceback' declared here
      PyObject *curexc_traceback;
                ^
  ext/_yaml.c:20865:13: error: no member named 'exc_type' in 'struct _ts'
      tstate->exc_type = local_type;
      ~~~~~~  ^
  ext/_yaml.c:20866:13: error: no member named 'exc_value' in 'struct _ts'; did you mean 'curexc_value'?
      tstate->exc_value = local_value;
              ^~~~~~~~~
              curexc_value
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/pystate.h:240:15: note: 'curexc_value' declared here
      PyObject *curexc_value;
                ^
  ext/_yaml.c:20867:13: error: no member named 'exc_traceback' in 'struct _ts'; did you mean 'curexc_traceback'?
      tstate->exc_traceback = local_tb;
              ^~~~~~~~~~~~~
              curexc_traceback
  /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/pystate.h:241:15: note: 'curexc_traceback' declared here
      PyObject *curexc_traceback;
                ^
  64 warnings and 15 errors generated.
  error: command 'clang' failed with exit status 1
  ----------------------------------------
  ERROR: Failed building wheel for pyyaml
  Running setup.py clean for pyyaml
Failed to build pyyaml
Installing collected packages: pyyaml, requests, schema, selenium, splinter
  Found existing installation: PyYAML 5.1.2
    Uninstalling PyYAML-5.1.2:
      Successfully uninstalled PyYAML-5.1.2
    Running setup.py install for pyyaml ... error
    ERROR: Command errored out with exit status 1:
     command: /usr/local/opt/python/bin/python3.7 -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/9b/2lxznqc5477dnpf6glf5tvv00000gn/T/pip-install-tvauk7fm/pyyaml/setup.py'"'"'; __file__='"'"'/private/var/folders/9b/2lxznqc5477dnpf6glf5tvv00000gn/T/pip-install-tvauk7fm/pyyaml/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /private/var/folders/9b/2lxznqc5477dnpf6glf5tvv00000gn/T/pip-record-0_cz43fj/install-record.txt --single-version-externally-managed --compile
         cwd: /private/var/folders/9b/2lxznqc5477dnpf6glf5tvv00000gn/T/pip-install-tvauk7fm/pyyaml/
    Complete output (453 lines):
    running install
    running build
    running build_py
    creating build
    creating build/lib.macosx-10.15-x86_64-3.7
    creating build/lib.macosx-10.15-x86_64-3.7/yaml
    copying lib3/yaml/scanner.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
    copying lib3/yaml/error.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
    copying lib3/yaml/constructor.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
    copying lib3/yaml/composer.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
    copying lib3/yaml/events.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
    copying lib3/yaml/__init__.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
    copying lib3/yaml/representer.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
    copying lib3/yaml/tokens.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
    copying lib3/yaml/dumper.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
    copying lib3/yaml/cyaml.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
    copying lib3/yaml/parser.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
    copying lib3/yaml/reader.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
    copying lib3/yaml/loader.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
    copying lib3/yaml/resolver.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
    copying lib3/yaml/serializer.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
    copying lib3/yaml/nodes.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
    copying lib3/yaml/emitter.py -> build/lib.macosx-10.15-x86_64-3.7/yaml
    running build_ext
    creating build/temp.macosx-10.15-x86_64-3.7
    checking if libyaml is compilable
    clang -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk/usr/include -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk/System/Library/Frameworks/Tk.framework/Versions/8.5/Headers -I/usr/local/include -I/usr/local/opt/openssl@1.1/include -I/usr/local/opt/sqlite/include -I/usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c build/temp.macosx-10.15-x86_64-3.7/check_libyaml.c -o build/temp.macosx-10.15-x86_64-3.7/check_libyaml.o
    checking if libyaml is linkable
    clang build/temp.macosx-10.15-x86_64-3.7/check_libyaml.o -L/usr/local/lib -L/usr/local/opt/openssl@1.1/lib -L/usr/local/opt/sqlite/lib -lyaml -o build/temp.macosx-10.15-x86_64-3.7/check_libyaml
    building '_yaml' extension
    creating build/temp.macosx-10.15-x86_64-3.7/ext
    clang -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk/usr/include -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk/System/Library/Frameworks/Tk.framework/Versions/8.5/Headers -I/usr/local/include -I/usr/local/opt/openssl@1.1/include -I/usr/local/opt/sqlite/include -I/usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c ext/_yaml.c -o build/temp.macosx-10.15-x86_64-3.7/ext/_yaml.o
    In file included from ext/_yaml.c:343:
    ext/_yaml.h:10:9: warning: 'PyString_CheckExact' macro redefined [-Wmacro-redefined]
    #define PyString_CheckExact PyBytes_CheckExact
            ^
    ext/_yaml.c:184:11: note: previous definition is here
      #define PyString_CheckExact          PyUnicode_CheckExact
              ^
    ext/_yaml.c:1346:17: warning: assigning to 'char *' from 'const char *' discards qualifiers [-Wincompatible-pointer-types-discards-qualifiers]
      __pyx_v_value = yaml_get_version_string();
                    ^ ~~~~~~~~~~~~~~~~~~~~~~~~~
    ext/_yaml.c:2471:52: warning: incompatible pointer types passing 'int (void *, char *, int, int *)' to parameter of type 'yaml_read_handler_t *' (aka 'int (*)(void *, unsigned char *, unsigned long, unsigned long *)') [-Wincompatible-pointer-types]
        yaml_parser_set_input((&__pyx_v_self->parser), __pyx_f_5_yaml_input_handler, ((void *)__pyx_v_self));
                                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /usr/local/include/yaml.h:1370:30: note: passing argument to parameter 'handler' here
            yaml_read_handler_t *handler, void *data);
                                 ^
    ext/_yaml.c:2664:59: warning: passing 'char *' to parameter of type 'const unsigned char *' converts between pointers to integer types with different sign [-Wpointer-sign]
        yaml_parser_set_input_string((&__pyx_v_self->parser), PyString_AS_STRING(__pyx_v_stream), PyString_GET_SIZE(__pyx_v_stream));
                                                              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    ext/_yaml.h:11:29: note: expanded from macro 'PyString_AS_STRING'
    #define PyString_AS_STRING  PyBytes_AS_STRING
                                ^
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/bytesobject.h:87:31: note: expanded from macro 'PyBytes_AS_STRING'
    #define PyBytes_AS_STRING(op) (assert(PyBytes_Check(op)), \
                                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /usr/local/include/yaml.h:1344:30: note: passing argument to parameter 'input' here
            const unsigned char *input, size_t size);
                                 ^
    ext/_yaml.c:4183:38: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_3 = PyUnicode_FromString(__pyx_v_token->data.tag_directive.handle); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 417; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
        const char *u              /* UTF-8 encoded string */
                    ^
    ext/_yaml.c:4195:38: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_3 = PyUnicode_FromString(__pyx_v_token->data.tag_directive.prefix); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 418; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
        const char *u              /* UTF-8 encoded string */
                    ^
    ext/_yaml.c:4741:38: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_3 = PyUnicode_FromString(__pyx_v_token->data.alias.value); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 448; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
        const char *u              /* UTF-8 encoded string */
                    ^
    ext/_yaml.c:4792:38: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_4 = PyUnicode_FromString(__pyx_v_token->data.anchor.value); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 451; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
        const char *u              /* UTF-8 encoded string */
                    ^
    ext/_yaml.c:4843:38: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_3 = PyUnicode_FromString(__pyx_v_token->data.tag.handle); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 454; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
        const char *u              /* UTF-8 encoded string */
                    ^
    ext/_yaml.c:4855:38: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_3 = PyUnicode_FromString(__pyx_v_token->data.tag.suffix); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 455; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
        const char *u              /* UTF-8 encoded string */
                    ^
    ext/_yaml.c:4938:38: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_2 = PyUnicode_DecodeUTF8(__pyx_v_token->data.scalar.value, __pyx_v_token->data.scalar.length, __pyx_k_strict); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 460; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:1299:17: note: passing argument to parameter 'string' here
        const char *string,         /* UTF-8 encoded string */
                    ^
    ext/_yaml.c:5559:134: warning: code will never be executed [-Wunreachable-code]
        __pyx_t_5 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_4); __Pyx_INCREF(__pyx_t_5); __pyx_t_4++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 504; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                                                                                                                         ^~~~~~~
    ext/_yaml.c:6435:42: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
            __pyx_t_4 = PyUnicode_FromString(__pyx_v_tag_directive->handle); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 574; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
        const char *u              /* UTF-8 encoded string */
                    ^
    ext/_yaml.c:6447:42: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
            __pyx_t_4 = PyUnicode_FromString(__pyx_v_tag_directive->prefix); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 575; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
        const char *u              /* UTF-8 encoded string */
                    ^
    ext/_yaml.c:6616:38: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_2 = PyUnicode_FromString(__pyx_v_event->data.alias.anchor); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 586; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
        const char *u              /* UTF-8 encoded string */
                    ^
    ext/_yaml.c:6687:40: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
          __pyx_t_1 = PyUnicode_FromString(__pyx_v_event->data.scalar.anchor); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 591; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
        const char *u              /* UTF-8 encoded string */
                    ^
    ext/_yaml.c:6722:40: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
          __pyx_t_1 = PyUnicode_FromString(__pyx_v_event->data.scalar.tag); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 594; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
        const char *u              /* UTF-8 encoded string */
                    ^
    ext/_yaml.c:6737:38: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_1 = PyUnicode_DecodeUTF8(__pyx_v_event->data.scalar.value, __pyx_v_event->data.scalar.length, __pyx_k_strict); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 595; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:1299:17: note: passing argument to parameter 'string' here
        const char *string,         /* UTF-8 encoded string */
                    ^
    ext/_yaml.c:7031:40: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
          __pyx_t_3 = PyUnicode_FromString(__pyx_v_event->data.sequence_start.anchor); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 620; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
        const char *u              /* UTF-8 encoded string */
                    ^
    ext/_yaml.c:7066:40: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
          __pyx_t_3 = PyUnicode_FromString(__pyx_v_event->data.sequence_start.tag); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 623; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
        const char *u              /* UTF-8 encoded string */
                    ^
    ext/_yaml.c:7253:40: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
          __pyx_t_2 = PyUnicode_FromString(__pyx_v_event->data.mapping_start.anchor); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 637; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
        const char *u              /* UTF-8 encoded string */
                    ^
    ext/_yaml.c:7288:40: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
          __pyx_t_2 = PyUnicode_FromString(__pyx_v_event->data.mapping_start.tag); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 640; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
        const char *u              /* UTF-8 encoded string */
                    ^
    ext/_yaml.c:7938:134: warning: code will never be executed [-Wunreachable-code]
        __pyx_t_5 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_4); __Pyx_INCREF(__pyx_t_5); __pyx_t_4++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 682; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                                                                                                                         ^~~~~~~
    ext/_yaml.c:8704:38: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_3 = PyUnicode_FromString(__pyx_v_self->parsed_event.data.alias.anchor); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 734; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
        const char *u              /* UTF-8 encoded string */
                    ^
    ext/_yaml.c:8924:38: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_6 = PyUnicode_FromString(__pyx_v_self->parsed_event.data.scalar.anchor); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 750; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
        const char *u              /* UTF-8 encoded string */
                    ^
    ext/_yaml.c:8962:38: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_6 = PyUnicode_FromString(__pyx_v_self->parsed_event.data.sequence_start.anchor); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 753; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
        const char *u              /* UTF-8 encoded string */
                    ^
    ext/_yaml.c:9000:38: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_6 = PyUnicode_FromString(__pyx_v_self->parsed_event.data.mapping_start.anchor); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 756; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
        const char *u              /* UTF-8 encoded string */
                    ^
    ext/_yaml.c:9532:36: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
      __pyx_t_2 = PyUnicode_DecodeUTF8(__pyx_v_self->parsed_event.data.scalar.value, __pyx_v_self->parsed_event.data.scalar.length, __pyx_k_strict); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 791; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:1299:17: note: passing argument to parameter 'string' here
        const char *string,         /* UTF-8 encoded string */
                    ^
    ext/_yaml.c:9688:38: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_9 = PyUnicode_FromString(__pyx_v_self->parsed_event.data.scalar.tag); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 804; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
        const char *u              /* UTF-8 encoded string */
                    ^
    ext/_yaml.c:10128:38: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_2 = PyUnicode_FromString(__pyx_v_self->parsed_event.data.sequence_start.tag); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 837; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
        const char *u              /* UTF-8 encoded string */
                    ^
    ext/_yaml.c:10654:38: warning: passing 'yaml_char_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_2 = PyUnicode_FromString(__pyx_v_self->parsed_event.data.mapping_start.tag); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 876; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/unicodeobject.h:703:17: note: passing argument to parameter 'u' here
        const char *u              /* UTF-8 encoded string */
                    ^
    ext/_yaml.c:11721:53: warning: incompatible pointer types passing 'int (void *, char *, int)' to parameter of type 'yaml_write_handler_t *' (aka 'int (*)(void *, unsigned char *, unsigned long)') [-Wincompatible-pointer-types]
      yaml_emitter_set_output((&__pyx_v_self->emitter), __pyx_f_5_yaml_output_handler, ((void *)__pyx_v_self));
                                                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /usr/local/include/yaml.h:1837:31: note: passing argument to parameter 'handler' here
            yaml_write_handler_t *handler, void *data);
                                  ^
    ext/_yaml.c:12898:44: warning: assigning to 'yaml_char_t *' (aka 'unsigned char *') from 'char *' converts between pointers to integer types with different sign [-Wpointer-sign]
            __pyx_v_tag_directives_end->handle = PyString_AS_STRING(__pyx_v_handle);
                                               ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    ext/_yaml.c:12991:44: warning: assigning to 'yaml_char_t *' (aka 'unsigned char *') from 'char *' converts between pointers to integer types with different sign [-Wpointer-sign]
            __pyx_v_tag_directives_end->prefix = PyString_AS_STRING(__pyx_v_prefix);
                                               ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    ext/_yaml.c:13248:62: warning: passing 'char *' to parameter of type 'yaml_char_t *' (aka 'unsigned char *') converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_4 = ((yaml_alias_event_initialize(__pyx_v_event, __pyx_v_anchor) == 0) != 0);
                                                                 ^~~~~~~~~~~~~~
    /usr/local/include/yaml.h:555:63: note: passing argument to parameter 'anchor' here
    yaml_alias_event_initialize(yaml_event_t *event, yaml_char_t *anchor);
                                                                  ^
    ext/_yaml.c:13824:63: warning: passing 'char *' to parameter of type 'yaml_char_t *' (aka 'unsigned char *') converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_3 = ((yaml_scalar_event_initialize(__pyx_v_event, __pyx_v_anchor, __pyx_v_tag, __pyx_v_value, __pyx_v_length, __pyx_v_plain_implicit, __pyx_v_quoted_implicit, __pyx_v_scalar_style) == 0) != 0);
                                                                  ^~~~~~~~~~~~~~
    /usr/local/include/yaml.h:581:22: note: passing argument to parameter 'anchor' here
            yaml_char_t *anchor, yaml_char_t *tag,
                         ^
    ext/_yaml.c:13824:79: warning: passing 'char *' to parameter of type 'yaml_char_t *' (aka 'unsigned char *') converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_3 = ((yaml_scalar_event_initialize(__pyx_v_event, __pyx_v_anchor, __pyx_v_tag, __pyx_v_value, __pyx_v_length, __pyx_v_plain_implicit, __pyx_v_quoted_implicit, __pyx_v_scalar_style) == 0) != 0);
                                                                                  ^~~~~~~~~~~
    /usr/local/include/yaml.h:581:43: note: passing argument to parameter 'tag' here
            yaml_char_t *anchor, yaml_char_t *tag,
                                              ^
    ext/_yaml.c:13824:92: warning: passing 'char *' to parameter of type 'yaml_char_t *' (aka 'unsigned char *') converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_3 = ((yaml_scalar_event_initialize(__pyx_v_event, __pyx_v_anchor, __pyx_v_tag, __pyx_v_value, __pyx_v_length, __pyx_v_plain_implicit, __pyx_v_quoted_implicit, __pyx_v_scalar_style) == 0) != 0);
                                                                                               ^~~~~~~~~~~~~
    /usr/local/include/yaml.h:582:22: note: passing argument to parameter 'value' here
            yaml_char_t *value, int length,
                         ^
    ext/_yaml.c:14166:71: warning: passing 'char *' to parameter of type 'yaml_char_t *' (aka 'unsigned char *') converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_4 = ((yaml_sequence_start_event_initialize(__pyx_v_event, __pyx_v_anchor, __pyx_v_tag, __pyx_v_implicit, __pyx_v_sequence_style) == 0) != 0);
                                                                          ^~~~~~~~~~~~~~
    /usr/local/include/yaml.h:604:22: note: passing argument to parameter 'anchor' here
            yaml_char_t *anchor, yaml_char_t *tag, int implicit,
                         ^
    ext/_yaml.c:14166:87: warning: passing 'char *' to parameter of type 'yaml_char_t *' (aka 'unsigned char *') converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_4 = ((yaml_sequence_start_event_initialize(__pyx_v_event, __pyx_v_anchor, __pyx_v_tag, __pyx_v_implicit, __pyx_v_sequence_style) == 0) != 0);
                                                                                          ^~~~~~~~~~~
    /usr/local/include/yaml.h:604:43: note: passing argument to parameter 'tag' here
            yaml_char_t *anchor, yaml_char_t *tag, int implicit,
                                              ^
    ext/_yaml.c:14508:70: warning: passing 'char *' to parameter of type 'yaml_char_t *' (aka 'unsigned char *') converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_3 = ((yaml_mapping_start_event_initialize(__pyx_v_event, __pyx_v_anchor, __pyx_v_tag, __pyx_v_implicit, __pyx_v_mapping_style) == 0) != 0);
                                                                         ^~~~~~~~~~~~~~
    /usr/local/include/yaml.h:636:22: note: passing argument to parameter 'anchor' here
            yaml_char_t *anchor, yaml_char_t *tag, int implicit,
                         ^
    ext/_yaml.c:14508:86: warning: passing 'char *' to parameter of type 'yaml_char_t *' (aka 'unsigned char *') converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_3 = ((yaml_mapping_start_event_initialize(__pyx_v_event, __pyx_v_anchor, __pyx_v_tag, __pyx_v_implicit, __pyx_v_mapping_style) == 0) != 0);
                                                                                         ^~~~~~~~~~~
    /usr/local/include/yaml.h:636:43: note: passing argument to parameter 'tag' here
            yaml_char_t *anchor, yaml_char_t *tag, int implicit,
                                              ^
    ext/_yaml.c:12773:140: warning: code will never be executed [-Wunreachable-code]
              __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_5, __pyx_t_7); __Pyx_INCREF(__pyx_t_1); __pyx_t_7++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1064; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                                                                                                                               ^~~~~~~
    ext/_yaml.c:12766:139: warning: code will never be executed [-Wunreachable-code]
              __pyx_t_1 = PyList_GET_ITEM(__pyx_t_5, __pyx_t_7); __Pyx_INCREF(__pyx_t_1); __pyx_t_7++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1064; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                                                                                                                              ^~~~~~~
    ext/_yaml.c:15784:42: warning: assigning to 'yaml_char_t *' (aka 'unsigned char *') from 'char *' converts between pointers to integer types with different sign [-Wpointer-sign]
          __pyx_v_tag_directives_end->handle = PyString_AS_STRING(__pyx_v_handle);
                                             ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    ext/_yaml.c:15877:42: warning: assigning to 'yaml_char_t *' (aka 'unsigned char *') from 'char *' converts between pointers to integer types with different sign [-Wpointer-sign]
          __pyx_v_tag_directives_end->prefix = PyString_AS_STRING(__pyx_v_prefix);
                                             ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    ext/_yaml.c:15662:138: warning: code will never be executed [-Wunreachable-code]
            __pyx_t_3 = PyTuple_GET_ITEM(__pyx_t_2, __pyx_t_5); __Pyx_INCREF(__pyx_t_3); __pyx_t_5++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1319; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                                                                                                                             ^~~~~~~
    ext/_yaml.c:15655:137: warning: code will never be executed [-Wunreachable-code]
            __pyx_t_3 = PyList_GET_ITEM(__pyx_t_2, __pyx_t_5); __Pyx_INCREF(__pyx_t_3); __pyx_t_5++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1319; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                                                                                                                            ^~~~~~~
    ext/_yaml.c:16298:140: warning: code will never be executed [-Wunreachable-code]
              __pyx_t_3 = PyTuple_GET_ITEM(__pyx_t_4, __pyx_t_5); __Pyx_INCREF(__pyx_t_3); __pyx_t_5++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1369; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                                                                                                                               ^~~~~~~
    ext/_yaml.c:16291:139: warning: code will never be executed [-Wunreachable-code]
              __pyx_t_3 = PyList_GET_ITEM(__pyx_t_4, __pyx_t_5); __Pyx_INCREF(__pyx_t_3); __pyx_t_5++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1369; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                                                                                                                              ^~~~~~~
    ext/_yaml.c:16223:140: warning: code will never be executed [-Wunreachable-code]
              __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_5); __Pyx_INCREF(__pyx_t_4); __pyx_t_5++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1366; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                                                                                                                               ^~~~~~~
    ext/_yaml.c:16216:139: warning: code will never be executed [-Wunreachable-code]
              __pyx_t_4 = PyList_GET_ITEM(__pyx_t_3, __pyx_t_5); __Pyx_INCREF(__pyx_t_4); __pyx_t_5++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1366; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                                                                                                                              ^~~~~~~
    ext/_yaml.c:16616:65: warning: passing 'char *' to parameter of type 'yaml_char_t *' (aka 'unsigned char *') converts between pointers to integer types with different sign [-Wpointer-sign]
        __pyx_t_2 = ((yaml_alias_event_initialize((&__pyx_v_event), __pyx_v_anchor) == 0) != 0);
                                                                    ^~~~~~~~~~~~~~
    /usr/local/include/yaml.h:555:63: note: passing argument to parameter 'anchor' here
    yaml_alias_event_initialize(yaml_event_t *event, yaml_char_t *anchor);
                                                                  ^
    ext/_yaml.c:17195:68: warning: passing 'char *' to parameter of type 'yaml_char_t *' (aka 'unsigned char *') converts between pointers to integer types with different sign [-Wpointer-sign]
          __pyx_t_8 = ((yaml_scalar_event_initialize((&__pyx_v_event), __pyx_v_anchor, __pyx_v_tag, __pyx_v_value, __pyx_v_length, __pyx_v_plain_implicit, __pyx_v_quoted_implicit, __pyx_v_scalar_style) == 0) != 0);
                                                                       ^~~~~~~~~~~~~~
    /usr/local/include/yaml.h:581:22: note: passing argument to parameter 'anchor' here
            yaml_char_t *anchor, yaml_char_t *tag,
                         ^
    ext/_yaml.c:17195:84: warning: passing 'char *' to parameter of type 'yaml_char_t *' (aka 'unsigned char *') converts between pointers to integer types with different sign [-Wpointer-sign]
          __pyx_t_8 = ((yaml_scalar_event_initialize((&__pyx_v_event), __pyx_v_anchor, __pyx_v_tag, __pyx_v_value, __pyx_v_length, __pyx_v_plain_implicit, __pyx_v_quoted_implicit, __pyx_v_scalar_style) == 0) != 0);
                                                                                       ^~~~~~~~~~~
    /usr/local/include/yaml.h:581:43: note: passing argument to parameter 'tag' here
            yaml_char_t *anchor, yaml_char_t *tag,
                                              ^
    ext/_yaml.c:17195:97: warning: passing 'char *' to parameter of type 'yaml_char_t *' (aka 'unsigned char *') converts between pointers to integer types with different sign [-Wpointer-sign]
          __pyx_t_8 = ((yaml_scalar_event_initialize((&__pyx_v_event), __pyx_v_anchor, __pyx_v_tag, __pyx_v_value, __pyx_v_length, __pyx_v_plain_implicit, __pyx_v_quoted_implicit, __pyx_v_scalar_style) == 0) != 0);
                                                                                                    ^~~~~~~~~~~~~
    /usr/local/include/yaml.h:582:22: note: passing argument to parameter 'value' here
            yaml_char_t *value, int length,
                         ^
    ext/_yaml.c:17473:76: warning: passing 'char *' to parameter of type 'yaml_char_t *' (aka 'unsigned char *') converts between pointers to integer types with different sign [-Wpointer-sign]
          __pyx_t_8 = ((yaml_sequence_start_event_initialize((&__pyx_v_event), __pyx_v_anchor, __pyx_v_tag, __pyx_v_implicit, __pyx_v_sequence_style) == 0) != 0);
                                                                               ^~~~~~~~~~~~~~
    /usr/local/include/yaml.h:604:22: note: passing argument to parameter 'anchor' here
            yaml_char_t *anchor, yaml_char_t *tag, int implicit,
                         ^
    ext/_yaml.c:17473:92: warning: passing 'char *' to parameter of type 'yaml_char_t *' (aka 'unsigned char *') converts between pointers to integer types with different sign [-Wpointer-sign]
          __pyx_t_8 = ((yaml_sequence_start_event_initialize((&__pyx_v_event), __pyx_v_anchor, __pyx_v_tag, __pyx_v_implicit, __pyx_v_sequence_style) == 0) != 0);
                                                                                               ^~~~~~~~~~~
    /usr/local/include/yaml.h:604:43: note: passing argument to parameter 'tag' here
            yaml_char_t *anchor, yaml_char_t *tag, int implicit,
                                              ^
    ext/_yaml.c:17874:75: warning: passing 'char *' to parameter of type 'yaml_char_t *' (aka 'unsigned char *') converts between pointers to integer types with different sign [-Wpointer-sign]
          __pyx_t_8 = ((yaml_mapping_start_event_initialize((&__pyx_v_event), __pyx_v_anchor, __pyx_v_tag, __pyx_v_implicit, __pyx_v_mapping_style) == 0) != 0);
                                                                              ^~~~~~~~~~~~~~
    /usr/local/include/yaml.h:636:22: note: passing argument to parameter 'anchor' here
            yaml_char_t *anchor, yaml_char_t *tag, int implicit,
                         ^
    ext/_yaml.c:17874:91: warning: passing 'char *' to parameter of type 'yaml_char_t *' (aka 'unsigned char *') converts between pointers to integer types with different sign [-Wpointer-sign]
          __pyx_t_8 = ((yaml_mapping_start_event_initialize((&__pyx_v_event), __pyx_v_anchor, __pyx_v_tag, __pyx_v_implicit, __pyx_v_mapping_style) == 0) != 0);
                                                                                              ^~~~~~~~~~~
    /usr/local/include/yaml.h:636:43: note: passing argument to parameter 'tag' here
            yaml_char_t *anchor, yaml_char_t *tag, int implicit,
                                              ^
    ext/_yaml.c:17950:140: warning: code will never be executed [-Wunreachable-code]
              __pyx_t_6 = PyTuple_GET_ITEM(__pyx_t_5, __pyx_t_9); __Pyx_INCREF(__pyx_t_6); __pyx_t_9++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1508; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                                                                                                                               ^~~~~~~
    ext/_yaml.c:17943:139: warning: code will never be executed [-Wunreachable-code]
              __pyx_t_6 = PyList_GET_ITEM(__pyx_t_5, __pyx_t_9); __Pyx_INCREF(__pyx_t_6); __pyx_t_9++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1508; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                                                                                                                              ^~~~~~~
    ext/_yaml.c:17558:140: warning: code will never be executed [-Wunreachable-code]
              __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_7, __pyx_t_9); __Pyx_INCREF(__pyx_t_1); __pyx_t_9++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1477; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                                                                                                                               ^~~~~~~
    ext/_yaml.c:17551:139: warning: code will never be executed [-Wunreachable-code]
              __pyx_t_1 = PyList_GET_ITEM(__pyx_t_7, __pyx_t_9); __Pyx_INCREF(__pyx_t_1); __pyx_t_9++; if (unlikely(0 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1477; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
                                                                                                                                              ^~~~~~~
    ext/_yaml.c:20800:21: error: no member named 'exc_type' in 'struct _ts'
        *type = tstate->exc_type;
                ~~~~~~  ^
    ext/_yaml.c:20801:22: error: no member named 'exc_value' in 'struct _ts'; did you mean 'curexc_value'?
        *value = tstate->exc_value;
                         ^~~~~~~~~
                         curexc_value
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/pystate.h:240:15: note: 'curexc_value' declared here
        PyObject *curexc_value;
                  ^
    ext/_yaml.c:20802:19: error: no member named 'exc_traceback' in 'struct _ts'; did you mean 'curexc_traceback'?
        *tb = tstate->exc_traceback;
                      ^~~~~~~~~~~~~
                      curexc_traceback
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/pystate.h:241:15: note: 'curexc_traceback' declared here
        PyObject *curexc_traceback;
                  ^
    ext/_yaml.c:20814:24: error: no member named 'exc_type' in 'struct _ts'
        tmp_type = tstate->exc_type;
                   ~~~~~~  ^
    ext/_yaml.c:20815:25: error: no member named 'exc_value' in 'struct _ts'; did you mean 'curexc_value'?
        tmp_value = tstate->exc_value;
                            ^~~~~~~~~
                            curexc_value
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/pystate.h:240:15: note: 'curexc_value' declared here
        PyObject *curexc_value;
                  ^
    ext/_yaml.c:20816:22: error: no member named 'exc_traceback' in 'struct _ts'; did you mean 'curexc_traceback'?
        tmp_tb = tstate->exc_traceback;
                         ^~~~~~~~~~~~~
                         curexc_traceback
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/pystate.h:241:15: note: 'curexc_traceback' declared here
        PyObject *curexc_traceback;
                  ^
    ext/_yaml.c:20817:13: error: no member named 'exc_type' in 'struct _ts'
        tstate->exc_type = type;
        ~~~~~~  ^
    ext/_yaml.c:20818:13: error: no member named 'exc_value' in 'struct _ts'; did you mean 'curexc_value'?
        tstate->exc_value = value;
                ^~~~~~~~~
                curexc_value
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/pystate.h:240:15: note: 'curexc_value' declared here
        PyObject *curexc_value;
                  ^
    ext/_yaml.c:20819:13: error: no member named 'exc_traceback' in 'struct _ts'; did you mean 'curexc_traceback'?
        tstate->exc_traceback = tb;
                ^~~~~~~~~~~~~
                curexc_traceback
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/pystate.h:241:15: note: 'curexc_traceback' declared here
        PyObject *curexc_traceback;
                  ^
    ext/_yaml.c:20862:24: error: no member named 'exc_type' in 'struct _ts'
        tmp_type = tstate->exc_type;
                   ~~~~~~  ^
    ext/_yaml.c:20863:25: error: no member named 'exc_value' in 'struct _ts'; did you mean 'curexc_value'?
        tmp_value = tstate->exc_value;
                            ^~~~~~~~~
                            curexc_value
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/pystate.h:240:15: note: 'curexc_value' declared here
        PyObject *curexc_value;
                  ^
    ext/_yaml.c:20864:22: error: no member named 'exc_traceback' in 'struct _ts'; did you mean 'curexc_traceback'?
        tmp_tb = tstate->exc_traceback;
                         ^~~~~~~~~~~~~
                         curexc_traceback
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/pystate.h:241:15: note: 'curexc_traceback' declared here
        PyObject *curexc_traceback;
                  ^
    ext/_yaml.c:20865:13: error: no member named 'exc_type' in 'struct _ts'
        tstate->exc_type = local_type;
        ~~~~~~  ^
    ext/_yaml.c:20866:13: error: no member named 'exc_value' in 'struct _ts'; did you mean 'curexc_value'?
        tstate->exc_value = local_value;
                ^~~~~~~~~
                curexc_value
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/pystate.h:240:15: note: 'curexc_value' declared here
        PyObject *curexc_value;
                  ^
    ext/_yaml.c:20867:13: error: no member named 'exc_traceback' in 'struct _ts'; did you mean 'curexc_traceback'?
        tstate->exc_traceback = local_tb;
                ^~~~~~~~~~~~~
                curexc_traceback
    /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/include/python3.7m/pystate.h:241:15: note: 'curexc_traceback' declared here
        PyObject *curexc_traceback;
                  ^
    64 warnings and 15 errors generated.
    error: command 'clang' failed with exit status 1
    ----------------------------------------
  Rolling back uninstall of PyYAML
  Moving to /usr/local/lib/python3.7/site-packages/PyYAML-5.1.2.dist-info/
   from /usr/local/lib/python3.7/site-packages/~yYAML-5.1.2.dist-info
  Moving to /usr/local/lib/python3.7/site-packages/_yaml.cpython-37m-darwin.so
   from /private/var/folders/9b/2lxznqc5477dnpf6glf5tvv00000gn/T/pip-uninstall-4e71678e/_yaml.cpython-37m-darwin.so
  Moving to /usr/local/lib/python3.7/site-packages/yaml/
   from /usr/local/lib/python3.7/site-packages/~aml
ERROR: Command errored out with exit status 1: /usr/local/opt/python/bin/python3.7 -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/9b/2lxznqc5477dnpf6glf5tvv00000gn/T/pip-install-tvauk7fm/pyyaml/setup.py'"'"'; __file__='"'"'/private/var/folders/9b/2lxznqc5477dnpf6glf5tvv00000gn/T/pip-install-tvauk7fm/pyyaml/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /private/var/folders/9b/2lxznqc5477dnpf6glf5tvv00000gn/T/pip-record-0_cz43fj/install-record.txt --single-version-externally-managed --compile Check the logs for full command output.
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