webrtc build with python 3.7 patch

webrtc_build_with_python3.7.patch

diff --git a/android/gyp/create_apk_operations_script.py b/android/gyp/create_apk_operations_script.py
index a39752bcf..c5306dc55 100755
--- a/android/gyp/create_apk_operations_script.py
+++ b/android/gyp/create_apk_operations_script.py
@@ -87,7 +87,7 @@ def main(args):
         'TARGET_CPU': repr(args.target_cpu),
     }
     script.write(SCRIPT_TEMPLATE.substitute(script_dict))
-  os.chmod(args.script_output_path, 0750)
+  os.chmod(args.script_output_path, 0o750)
   return 0
 
 
diff --git a/android/gyp/util/build_utils.py b/android/gyp/util/build_utils.py
index bc15fbb61..6bb18644a 100644
--- a/android/gyp/util/build_utils.py
+++ b/android/gyp/util/build_utils.py
@@ -256,9 +256,9 @@ def CheckOutput(args, cwd=None, env=None,
     raise CalledProcessError(cwd, args, stdout + stderr)
 
   if print_stdout:
-    sys.stdout.write(stdout)
+    sys.stdout.write(stdout.decode('utf-8'))
   if print_stderr:
-    sys.stderr.write(stderr)
+    sys.stderr.write(stderr.decode('utf-8'))
 
   return stdout
 
@@ -550,9 +550,19 @@ def ComputePythonDependencies():
   _ForceLazyModulesToLoad()
   module_paths = (m.__file__ for m in sys.modules.values()
                   if m is not None and hasattr(m, '__file__'))
-  abs_module_paths = map(os.path.abspath, module_paths)
+  #abs_module_paths = map(os.path.abspath, module_paths)
+  def abspath_35(m):
+      # mimik os.abspath behaviour of python <=3.5)
+      # https://bugs.python.org/issue22587
+      if m is None:
+          return os.getcwd()
+      else:
+          return os.path.abspath(m)
+
+  abs_module_paths = [abspath_35(m) for m in module_paths]
 
   abs_dir_source_root = os.path.abspath(DIR_SOURCE_ROOT)
+  print('Debug:', abs_module_paths, abs_dir_source_root)
   non_system_module_paths = [
       p for p in abs_module_paths if p.startswith(abs_dir_source_root)
   ]
diff --git a/android/gyp/util/md5_check.py b/android/gyp/util/md5_check.py
index a8a815e7e..28c9aa1da 100644
--- a/android/gyp/util/md5_check.py
+++ b/android/gyp/util/md5_check.py
@@ -443,7 +443,7 @@ def _ComputeInlineMd5(iterable):
   """Computes the md5 of the concatenated parameters."""
   md5 = hashlib.md5()
   for item in iterable:
-    md5.update(str(item))
+    md5.update(str(item).encode('utf-8'))
   return md5.hexdigest()
 
 
diff --git a/android/gyp/write_build_config.py b/android/gyp/write_build_config.py
index 02b02fcd5..4645f3b19 100755
--- a/android/gyp/write_build_config.py
+++ b/android/gyp/write_build_config.py
@@ -755,7 +755,7 @@ def _MergeAssets(all_assets):
         locale_paks.add(dest)
 
   def create_list(asset_map):
-    ret = ['%s:%s' % (src, dest) for dest, src in asset_map.iteritems()]
+    ret = ['%s:%s' % (src, dest) for dest, src in asset_map.items()]
     # Sort to ensure deterministic ordering.
     ret.sort()
     return ret
@@ -1555,7 +1555,7 @@ def main(argv):
     configs_by_classpath_entry = collections.defaultdict(list)
     static_lib_jar_paths = {}
     for config_path, dep_config in (sorted(
-        static_library_dependent_configs_by_path.iteritems())):
+        static_library_dependent_configs_by_path.items())):
       # For bundles, only the jar path and jni sources of the base module
       # are relevant for proguard. Should be updated when bundle feature
       # modules support JNI.
@@ -1584,7 +1584,7 @@ def main(argv):
     for cp_entry in java_full_classpath:
       configs_by_classpath_entry[cp_entry].append(options.build_config)
 
-    for cp_entry, candidate_configs in configs_by_classpath_entry.iteritems():
+    for cp_entry, candidate_configs in configs_by_classpath_entry.items():
       config_path = (candidate_configs[0]
                      if len(candidate_configs) == 1 else options.build_config)
       classpath_entries_by_owning_config[config_path].append(cp_entry)
@@ -1594,11 +1594,11 @@ def main(argv):
 
   deps_info['static_library_proguard_mapping_output_paths'] = sorted([
       d['proguard_mapping_path']
-      for d in static_library_dependent_configs_by_path.itervalues()
+      for d in static_library_dependent_configs_by_path.values()
   ])
   deps_info['static_library_dependent_classpath_configs'] = {
       path: sorted(set(classpath))
-      for path, classpath in classpath_entries_by_owning_config.iteritems()
+      for path, classpath in classpath_entries_by_owning_config.items()
   }
   deps_info['extra_main_r_text_files'] = sorted(extra_main_r_text_files)