Issues with `make` for installing viper: missing yaml.h

Issues-with-make-install-viper-missing-yaml-dot-h

(viper-venv) james@james-Streacom:~/viper$ sudo apt-get install libssl-dev
[sudo] password for james: 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following additional packages will be installed:
  libssl-doc libssl1.0.0
The following NEW packages will be installed
  libssl-dev libssl-doc
The following packages will be upgraded:
  libssl1.0.0
1 to upgrade, 2 to newly install, 0 to remove and 2 not to upgrade.
Need to get 2,414 kB/3,500 kB of archives.
After this operation, 10.1 MB of additional disk space will be used.
Do you want to continue? [Y/n] Y
Get:1 http://security.ubuntu.com/ubuntu artful-security/main amd64 libssl-dev amd64 1.0.2g-1ubuntu13.3 [1,358 kB]
Get:2 http://security.ubuntu.com/ubuntu artful-security/main amd64 libssl-doc all 1.0.2g-1ubuntu13.3 [1,056 kB]
Fetched 2,414 kB in 4s (522 kB/s)     
Preconfiguring packages ...
(Reading database ... 252989 files and directories currently installed.)
Preparing to unpack .../libssl1.0.0_1.0.2g-1ubuntu13.3_amd64.deb ...
Unpacking libssl1.0.0:amd64 (1.0.2g-1ubuntu13.3) over (1.0.2g-1ubuntu13.2) ...
Selecting previously unselected package libssl-dev:amd64.
Preparing to unpack .../libssl-dev_1.0.2g-1ubuntu13.3_amd64.deb ...
Unpacking libssl-dev:amd64 (1.0.2g-1ubuntu13.3) ...
Selecting previously unselected package libssl-doc.
Preparing to unpack .../libssl-doc_1.0.2g-1ubuntu13.3_all.deb ...
Unpacking libssl-doc (1.0.2g-1ubuntu13.3) ...
Setting up libssl1.0.0:amd64 (1.0.2g-1ubuntu13.3) ...
Setting up libssl-dev:amd64 (1.0.2g-1ubuntu13.3) ...
Processing triggers for libc-bin (2.26-0ubuntu2) ...
Processing triggers for man-db (2.7.6.1-2) ...
Setting up libssl-doc (1.0.2g-1ubuntu13.3) ...
(viper-venv) james@james-Streacom:~/viper$ make
python setup.py install
running install
running bdist_egg
running egg_info
writing viper.egg-info/PKG-INFO
writing dependency_links to viper.egg-info/dependency_links.txt
writing requirements to viper.egg-info/requires.txt
writing top-level names to viper.egg-info/top_level.txt
reading manifest file 'viper.egg-info/SOURCES.txt'
writing manifest file 'viper.egg-info/SOURCES.txt'
installing library code to build/bdist.linux-x86_64/egg
running install_lib
running build_py
creating build/bdist.linux-x86_64/egg
creating build/bdist.linux-x86_64/egg/viper
copying build/lib/viper/premade_contracts.py -> build/bdist.linux-x86_64/egg/viper
copying build/lib/viper/compiler.py -> build/bdist.linux-x86_64/egg/viper
creating build/bdist.linux-x86_64/egg/viper/signatures
copying build/lib/viper/signatures/__init__.py -> build/bdist.linux-x86_64/egg/viper/signatures
copying build/lib/viper/signatures/event_signature.py -> build/bdist.linux-x86_64/egg/viper/signatures
creating build/bdist.linux-x86_64/egg/viper/parser
copying build/lib/viper/parser/parser.py -> build/bdist.linux-x86_64/egg/viper/parser
copying build/lib/viper/parser/expr.py -> build/bdist.linux-x86_64/egg/viper/parser
copying build/lib/viper/parser/parser_utils.py -> build/bdist.linux-x86_64/egg/viper/parser
copying build/lib/viper/parser/stmt.py -> build/bdist.linux-x86_64/egg/viper/parser
copying build/lib/viper/parser/__init__.py -> build/bdist.linux-x86_64/egg/viper/parser
copying build/lib/viper/functions.py -> build/bdist.linux-x86_64/egg/viper
copying build/lib/viper/utils.py -> build/bdist.linux-x86_64/egg/viper
copying build/lib/viper/types.py -> build/bdist.linux-x86_64/egg/viper
copying build/lib/viper/opcodes.py -> build/bdist.linux-x86_64/egg/viper
copying build/lib/viper/compile_lll.py -> build/bdist.linux-x86_64/egg/viper
copying build/lib/viper/exceptions.py -> build/bdist.linux-x86_64/egg/viper
copying build/lib/viper/server.py -> build/bdist.linux-x86_64/egg/viper
copying build/lib/viper/function_signature.py -> build/bdist.linux-x86_64/egg/viper
copying build/lib/viper/__init__.py -> build/bdist.linux-x86_64/egg/viper
copying build/lib/viper/optimizer.py -> build/bdist.linux-x86_64/egg/viper
byte-compiling build/bdist.linux-x86_64/egg/viper/premade_contracts.py to premade_contracts.cpython-36.pyc
byte-compiling build/bdist.linux-x86_64/egg/viper/compiler.py to compiler.cpython-36.pyc
byte-compiling build/bdist.linux-x86_64/egg/viper/signatures/__init__.py to __init__.cpython-36.pyc
byte-compiling build/bdist.linux-x86_64/egg/viper/signatures/event_signature.py to event_signature.cpython-36.pyc
byte-compiling build/bdist.linux-x86_64/egg/viper/parser/parser.py to parser.cpython-36.pyc
byte-compiling build/bdist.linux-x86_64/egg/viper/parser/expr.py to expr.cpython-36.pyc
byte-compiling build/bdist.linux-x86_64/egg/viper/parser/parser_utils.py to parser_utils.cpython-36.pyc
byte-compiling build/bdist.linux-x86_64/egg/viper/parser/stmt.py to stmt.cpython-36.pyc
byte-compiling build/bdist.linux-x86_64/egg/viper/parser/__init__.py to __init__.cpython-36.pyc
byte-compiling build/bdist.linux-x86_64/egg/viper/functions.py to functions.cpython-36.pyc
byte-compiling build/bdist.linux-x86_64/egg/viper/utils.py to utils.cpython-36.pyc
byte-compiling build/bdist.linux-x86_64/egg/viper/types.py to types.cpython-36.pyc
byte-compiling build/bdist.linux-x86_64/egg/viper/opcodes.py to opcodes.cpython-36.pyc
byte-compiling build/bdist.linux-x86_64/egg/viper/compile_lll.py to compile_lll.cpython-36.pyc
byte-compiling build/bdist.linux-x86_64/egg/viper/exceptions.py to exceptions.cpython-36.pyc
byte-compiling build/bdist.linux-x86_64/egg/viper/server.py to server.cpython-36.pyc
byte-compiling build/bdist.linux-x86_64/egg/viper/function_signature.py to function_signature.cpython-36.pyc
byte-compiling build/bdist.linux-x86_64/egg/viper/__init__.py to __init__.cpython-36.pyc
byte-compiling build/bdist.linux-x86_64/egg/viper/optimizer.py to optimizer.cpython-36.pyc
creating build/bdist.linux-x86_64/egg/EGG-INFO
installing scripts to build/bdist.linux-x86_64/egg/EGG-INFO/scripts
running install_scripts
running build_scripts
creating build/bdist.linux-x86_64/egg/EGG-INFO/scripts
copying build/scripts-3.6/viper-serve -> build/bdist.linux-x86_64/egg/EGG-INFO/scripts
copying build/scripts-3.6/viper -> build/bdist.linux-x86_64/egg/EGG-INFO/scripts
changing mode of build/bdist.linux-x86_64/egg/EGG-INFO/scripts/viper-serve to 755
changing mode of build/bdist.linux-x86_64/egg/EGG-INFO/scripts/viper to 755
copying viper.egg-info/PKG-INFO -> build/bdist.linux-x86_64/egg/EGG-INFO
copying viper.egg-info/SOURCES.txt -> build/bdist.linux-x86_64/egg/EGG-INFO
copying viper.egg-info/dependency_links.txt -> build/bdist.linux-x86_64/egg/EGG-INFO
copying viper.egg-info/requires.txt -> build/bdist.linux-x86_64/egg/EGG-INFO
copying viper.egg-info/top_level.txt -> build/bdist.linux-x86_64/egg/EGG-INFO
zip_safe flag not set; analyzing archive contents...
creating 'dist/viper-0.0.2-py3.6.egg' and adding 'build/bdist.linux-x86_64/egg' to it
removing 'build/bdist.linux-x86_64/egg' (and everything under it)
Processing viper-0.0.2-py3.6.egg
Removing /home/james/viper-venv/lib/python3.6/site-packages/viper-0.0.2-py3.6.egg
Copying viper-0.0.2-py3.6.egg to /home/james/viper-venv/lib/python3.6/site-packages
viper 0.0.2 is already the active version in easy-install.pth
Installing viper script to /home/james/viper-venv/bin
Installing viper-serve script to /home/james/viper-venv/bin

Installed /home/james/viper-venv/lib/python3.6/site-packages/viper-0.0.2-py3.6.egg
Processing dependencies for viper==0.0.2
Searching for scrypt
Reading https://pypi.python.org/simple/scrypt/
Downloading https://pypi.python.org/packages/af/82/44b030646b9de44ba5a5c7e87b0419a4d44318ba18468f5292b9c16737ac/scrypt-0.8.0.tar.gz#md5=0704e59cc3afb3845c27bb3827baeea9
Best match: scrypt 0.8.0
Processing scrypt-0.8.0.tar.gz
Writing /tmp/easy_install-2nx_5fcp/scrypt-0.8.0/setup.cfg
Running scrypt-0.8.0/setup.py -q bdist_egg --dist-dir /tmp/easy_install-2nx_5fcp/scrypt-0.8.0/egg-dist-tmp-iiic2aq2
zip_safe flag not set; analyzing archive contents...
__pycache__._scrypt.cpython-36: module references __file__
creating /home/james/viper-venv/lib/python3.6/site-packages/scrypt-0.8.0-py3.6-linux-x86_64.egg
Extracting scrypt-0.8.0-py3.6-linux-x86_64.egg to /home/james/viper-venv/lib/python3.6/site-packages
Adding scrypt 0.8.0 to easy-install.pth file

Installed /home/james/viper-venv/lib/python3.6/site-packages/scrypt-0.8.0-py3.6-linux-x86_64.egg
Searching for repoze.lru
Reading https://pypi.python.org/simple/repoze.lru/
Downloading https://pypi.python.org/packages/b0/30/6cc0c95f0b59ad4b3b9163bff7cdcf793cc96fac64cf398ff26271f5cf5e/repoze.lru-0.7-py3-none-any.whl#md5=78343875530963db838d7eab596ef443
Best match: repoze.lru 0.7
Processing repoze.lru-0.7-py3-none-any.whl
Installing repoze.lru-0.7-py3-none-any.whl to /home/james/viper-venv/lib/python3.6/site-packages
writing requirements to /home/james/viper-venv/lib/python3.6/site-packages/repoze.lru-0.7-py3.6.egg/EGG-INFO/requires.txt
Adding repoze.lru 0.7 to easy-install.pth file

Installed /home/james/viper-venv/lib/python3.6/site-packages/repoze.lru-0.7-py3.6.egg
Searching for PyYAML
Reading https://pypi.python.org/simple/PyYAML/
Downloading https://pypi.python.org/packages/6b/f0/a0250248ea260d55748fff586d89a32afbb22656f4498b08d2636a48d4ec/PyYAML-3.12.zip#md5=aa5e762e79b19bb80dbcf04f82178832
Best match: PyYAML 3.12
Processing PyYAML-3.12.zip
Writing /tmp/easy_install-h7m38axo/PyYAML-3.12/setup.cfg
Running PyYAML-3.12/setup.py -q bdist_egg --dist-dir /tmp/easy_install-h7m38axo/PyYAML-3.12/egg-dist-tmp-wpifwnzq
build/temp.linux-x86_64-3.6/check_libyaml.c:2:10: fatal error: yaml.h: No such file or directory
 #include <yaml.h>
          ^~~~~~~~
compilation terminated.

libyaml is not found or a compiler error: forcing --without-libyaml
(if libyaml is installed correctly, you may need to
 specify the option --include-dirs or uncomment and
 modify the parameter include_dirs in setup.cfg)
zip_safe flag not set; analyzing archive contents...
Moving PyYAML-3.12-py3.6-linux-x86_64.egg to /home/james/viper-venv/lib/python3.6/site-packages
Adding PyYAML 3.12 to easy-install.pth file

Installed /home/james/viper-venv/lib/python3.6/site-packages/PyYAML-3.12-py3.6-linux-x86_64.egg
Searching for pysha3>=1.0.1
Reading https://pypi.python.org/simple/pysha3/
Downloading https://pypi.python.org/packages/32/2a/b93e0c6d90c7c45e2fab35d7ef349e8c5bd7387a048e961b041fd9521556/pysha3-1.0.2-cp36-cp36m-manylinux1_x86_64.whl#md5=d397ef5a3332992fac7c29636f5cb7f1
Best match: pysha3 1.0.2
Processing pysha3-1.0.2-cp36-cp36m-manylinux1_x86_64.whl
Installing pysha3-1.0.2-cp36-cp36m-manylinux1_x86_64.whl to /home/james/viper-venv/lib/python3.6/site-packages
Adding pysha3 1.0.2 to easy-install.pth file

Installed /home/james/viper-venv/lib/python3.6/site-packages/pysha3-1.0.2-py3.6-linux-x86_64.egg
Searching for six>=1.10.0
Reading https://pypi.python.org/simple/six/
Downloading https://pypi.python.org/packages/67/4b/141a581104b1f6397bfa78ac9d43d8ad29a7ca43ea90a2d863fe3056e86a/six-1.11.0-py2.py3-none-any.whl#md5=866ab722be6bdfed6830f3179af65468
Best match: six 1.11.0
Processing six-1.11.0-py2.py3-none-any.whl
Installing six-1.11.0-py2.py3-none-any.whl to /home/james/viper-venv/lib/python3.6/site-packages
Adding six 1.11.0 to easy-install.pth file

Installed /home/james/viper-venv/lib/python3.6/site-packages/six-1.11.0-py3.6.egg
Searching for py>=1.5.0
Reading https://pypi.python.org/simple/py/
Downloading https://pypi.python.org/packages/41/70/adacedf6cdc13700d40303f78b241f98c959e2745fdebbe56af74c08344d/py-1.5.2-py2.py3-none-any.whl#md5=8e220c5b453c0756b90570f95d64f35c
Best match: py 1.5.2
Processing py-1.5.2-py2.py3-none-any.whl
Installing py-1.5.2-py2.py3-none-any.whl to /home/james/viper-venv/lib/python3.6/site-packages
Adding py 1.5.2 to easy-install.pth file

Installed /home/james/viper-venv/lib/python3.6/site-packages/py-1.5.2-py3.6.egg
Searching for pluggy<0.7,>=0.5
Reading https://pypi.python.org/simple/pluggy/
Downloading https://pypi.python.org/packages/11/bf/cbeb8cdfaffa9f2ea154a30ae31a9d04a1209312e2919138b4171a1f8199/pluggy-0.6.0.tar.gz#md5=ffdde7c3a5ba9a440404570366ffb6d5
Best match: pluggy 0.6.0
Processing pluggy-0.6.0.tar.gz
Writing /tmp/easy_install-41eda63e/pluggy-0.6.0/setup.cfg
Running pluggy-0.6.0/setup.py -q bdist_egg --dist-dir /tmp/easy_install-41eda63e/pluggy-0.6.0/egg-dist-tmp-5kwahjrh
warning: no files found matching 'CHANGELOG'
warning: no previously-included files matching '*.pyc' found under directory '*'
warning: no previously-included files matching '*.pyo' found under directory '*'
zip_safe flag not set; analyzing archive contents...
pluggy.__pycache__.__init__.cpython-36: module MAY be using inspect.trace
creating /home/james/viper-venv/lib/python3.6/site-packages/pluggy-0.6.0-py3.6.egg
Extracting pluggy-0.6.0-py3.6.egg to /home/james/viper-venv/lib/python3.6/site-packages
Adding pluggy 0.6.0 to easy-install.pth file

Installed /home/james/viper-venv/lib/python3.6/site-packages/pluggy-0.6.0-py3.6.egg
Searching for attrs>=17.2.0
Reading https://pypi.python.org/simple/attrs/
Downloading https://pypi.python.org/packages/43/c6/18446759c9b0f89a149854974e9ac8050f14cebea31dbff7344dd7bd35ef/attrs-17.3.0-py2.py3-none-any.whl#md5=726f29636ec7b1e199c5752223d10cb0
Best match: attrs 17.3.0
Processing attrs-17.3.0-py2.py3-none-any.whl
Installing attrs-17.3.0-py2.py3-none-any.whl to /home/james/viper-venv/lib/python3.6/site-packages
Adding attrs 17.3.0 to easy-install.pth file

Installed /home/james/viper-venv/lib/python3.6/site-packages/attrs-17.3.0-py3.6.egg
Searching for cffi>=1.3.0
Reading https://pypi.python.org/simple/cffi/
Downloading https://pypi.python.org/packages/dc/1e/b383fde1f0a14b6ef5a60f71797c778ea1ef8bb34b726cb57061c0542c58/cffi-1.11.2-cp36-cp36m-manylinux1_x86_64.whl#md5=19b94fc451bc4bd1b4ec5c7531dd10a5
Best match: cffi 1.11.2
Processing cffi-1.11.2-cp36-cp36m-manylinux1_x86_64.whl
Installing cffi-1.11.2-cp36-cp36m-manylinux1_x86_64.whl to /home/james/viper-venv/lib/python3.6/site-packages
writing requirements to /home/james/viper-venv/lib/python3.6/site-packages/cffi-1.11.2-py3.6-linux-x86_64.egg/EGG-INFO/requires.txt
Adding cffi 1.11.2 to easy-install.pth file

Installed /home/james/viper-venv/lib/python3.6/site-packages/cffi-1.11.2-py3.6-linux-x86_64.egg
Searching for asn1crypto
Reading https://pypi.python.org/simple/asn1crypto/
Downloading https://pypi.python.org/packages/5e/85/d9b46c307ff2b5504432425cd99e2d9f13ab7a9835ba45c93da299cb1ec8/asn1crypto-0.23.0-py2.py3-none-any.whl#md5=7be9a80b2eff7cf4159fda71ba13c355
Best match: asn1crypto 0.23.0
Processing asn1crypto-0.23.0-py2.py3-none-any.whl
Installing asn1crypto-0.23.0-py2.py3-none-any.whl to /home/james/viper-venv/lib/python3.6/site-packages
Adding asn1crypto 0.23.0 to easy-install.pth file

Installed /home/james/viper-venv/lib/python3.6/site-packages/asn1crypto-0.23.0-py3.6.egg
Searching for pycparser
Reading https://pypi.python.org/simple/pycparser/
Downloading https://pypi.python.org/packages/8c/2d/aad7f16146f4197a11f8e91fb81df177adcc2073d36a17b1491fd09df6ed/pycparser-2.18.tar.gz#md5=72370da54358202a60130e223d488136
Best match: pycparser 2.18
Processing pycparser-2.18.tar.gz
Writing /tmp/easy_install-71dv_vsq/pycparser-2.18/setup.cfg
Running pycparser-2.18/setup.py -q bdist_egg --dist-dir /tmp/easy_install-71dv_vsq/pycparser-2.18/egg-dist-tmp-7gb3tqay
warning: no previously-included files matching 'yacctab.*' found under directory 'tests'
warning: no previously-included files matching 'lextab.*' found under directory 'tests'
warning: no previously-included files matching 'yacctab.*' found under directory 'examples'
warning: no previously-included files matching 'lextab.*' found under directory 'examples'
zip_safe flag not set; analyzing archive contents...
pycparser.ply.__pycache__.lex.cpython-36: module references __file__
pycparser.ply.__pycache__.lex.cpython-36: module MAY be using inspect.getsourcefile
pycparser.ply.__pycache__.yacc.cpython-36: module references __file__
pycparser.ply.__pycache__.yacc.cpython-36: module MAY be using inspect.getsourcefile
pycparser.ply.__pycache__.yacc.cpython-36: module MAY be using inspect.stack
pycparser.ply.__pycache__.ygen.cpython-36: module references __file__
creating /home/james/viper-venv/lib/python3.6/site-packages/pycparser-2.18-py3.6.egg
Extracting pycparser-2.18-py3.6.egg to /home/james/viper-venv/lib/python3.6/site-packages
Adding pycparser 2.18 to easy-install.pth file

Installed /home/james/viper-venv/lib/python3.6/site-packages/pycparser-2.18-py3.6.egg
Searching for pytest-runner==3.0
Best match: pytest-runner 3.0
Processing pytest_runner-3.0-py3.6.egg
pytest-runner 3.0 is already the active version in easy-install.pth

Using /home/james/viper-venv/lib/python3.6/site-packages/pytest_runner-3.0-py3.6.egg
Searching for pytest-cov==2.5.1
Best match: pytest-cov 2.5.1
Processing pytest_cov-2.5.1-py3.6.egg
pytest-cov 2.5.1 is already the active version in easy-install.pth

Using /home/james/viper-venv/lib/python3.6/site-packages/pytest_cov-2.5.1-py3.6.egg
Searching for bumpversion==0.5.3
Best match: bumpversion 0.5.3
Processing bumpversion-0.5.3-py3.6.egg
bumpversion 0.5.3 is already the active version in easy-install.pth
Installing bumpversion script to /home/james/viper-venv/bin
Installing bumpversion script to /home/james/viper-venv/bin

Using /home/james/viper-venv/lib/python3.6/site-packages/bumpversion-0.5.3-py3.6.egg
Searching for ethereum==2.1.3
Best match: ethereum 2.1.3
Processing ethereum-2.1.3-py3.6.egg
ethereum 2.1.3 is already the active version in easy-install.pth

Using /home/james/viper-venv/lib/python3.6/site-packages/ethereum-2.1.3-py3.6.egg
Searching for pytest==3.3.1
Best match: pytest 3.3.1
Processing pytest-3.3.1-py3.6.egg
pytest 3.3.1 is already the active version in easy-install.pth
Installing py.test script to /home/james/viper-venv/bin
Installing pytest script to /home/james/viper-venv/bin

Using /home/james/viper-venv/lib/python3.6/site-packages/pytest-3.3.1-py3.6.egg
Searching for coverage==4.4.2
Best match: coverage 4.4.2
Processing coverage-4.4.2-py3.6-linux-x86_64.egg
coverage 4.4.2 is already the active version in easy-install.pth
Installing coverage script to /home/james/viper-venv/bin
Installing coverage-3.6 script to /home/james/viper-venv/bin
Installing coverage3 script to /home/james/viper-venv/bin

Using /home/james/viper-venv/lib/python3.6/site-packages/coverage-4.4.2-py3.6-linux-x86_64.egg
Searching for future==0.16.0
Best match: future 0.16.0
Processing future-0.16.0-py3.6.egg
future 0.16.0 is already the active version in easy-install.pth
Installing futurize script to /home/james/viper-venv/bin
Installing pasteurize script to /home/james/viper-venv/bin

Using /home/james/viper-venv/lib/python3.6/site-packages/future-0.16.0-py3.6.egg
Searching for coincurve==6.0.0
Best match: coincurve 6.0.0
Processing coincurve-6.0.0-py3.6-linux-x86_64.egg
coincurve 6.0.0 is already the active version in easy-install.pth

Using /home/james/viper-venv/lib/python3.6/site-packages/coincurve-6.0.0-py3.6-linux-x86_64.egg
Searching for pycryptodome==3.4.6
Best match: pycryptodome 3.4.6
Processing pycryptodome-3.4.6-py3.6-linux-x86_64.egg
pycryptodome 3.4.6 is already the active version in easy-install.pth

Using /home/james/viper-venv/lib/python3.6/site-packages/pycryptodome-3.4.6-py3.6-linux-x86_64.egg
Searching for pyethash==0.1.27
Best match: pyethash 0.1.27
Processing pyethash-0.1.27-py3.6-linux-x86_64.egg
pyethash 0.1.27 is already the active version in easy-install.pth

Using /home/james/viper-venv/lib/python3.6/site-packages/pyethash-0.1.27-py3.6-linux-x86_64.egg
Searching for rlp==0.6.0
Best match: rlp 0.6.0
Processing rlp-0.6.0-py3.6.egg
rlp 0.6.0 is already the active version in easy-install.pth

Using /home/james/viper-venv/lib/python3.6/site-packages/rlp-0.6.0-py3.6.egg
Searching for py-ecc==1.4.2
Best match: py-ecc 1.4.2
Processing py_ecc-1.4.2-py3.6.egg
py-ecc 1.4.2 is already the active version in easy-install.pth

Using /home/james/viper-venv/lib/python3.6/site-packages/py_ecc-1.4.2-py3.6.egg
Searching for pbkdf2==1.3
Best match: pbkdf2 1.3
Processing pbkdf2-1.3-py3.6.egg
pbkdf2 1.3 is already the active version in easy-install.pth

Using /home/james/viper-venv/lib/python3.6/site-packages/pbkdf2-1.3-py3.6.egg
Searching for setuptools==38.2.4
Best match: setuptools 38.2.4
Adding setuptools 38.2.4 to easy-install.pth file
Installing easy_install script to /home/james/viper-venv/bin
Installing easy_install-3.6 script to /home/james/viper-venv/bin

Using /home/james/viper-venv/lib/python3.6/site-packages
Finished processing dependencies for viper==0.0.2