Viper Python Errors

viper-error.log

(viper-venv) michael: vyper $ make test
python setup.py test
running pytest
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'
running build_ext
Traceback (most recent call last):
  File "/Users/michael/viper-venv/lib/python3.6/site-packages/pytest-3.3.1-py3.6.egg/_pytest/config.py", line 328, in _getconftestmodules
    return self._path2confmods[path]
KeyError: local('/Users/michael/Programming/vyper/tests')

During handling of the above exception, another exception occurred:
Traceback (most recent call last):
  File "/Users/michael/viper-venv/lib/python3.6/site-packages/pytest-3.3.1-py3.6.egg/_pytest/config.py", line 359, in _importconftest
    return self._conftestpath2mod[conftestpath]
KeyError: local('/Users/michael/Programming/vyper/tests/conftest.py')

During handling of the above exception, another exception occurred:
Traceback (most recent call last):
  File "/Users/michael/viper-venv/lib/python3.6/site-packages/pytest-3.3.1-py3.6.egg/_pytest/config.py", line 365, in _importconftest
    mod = conftestpath.pyimport()
  File "/Users/michael/viper-venv/lib/python3.6/site-packages/py-1.5.2-py3.6.egg/py/_path/local.py", line 668, in pyimport
    __import__(modname)
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 656, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 626, in _load_backward_compatible
  File "/Users/michael/viper-venv/lib/python3.6/site-packages/pytest-3.3.1-py3.6.egg/_pytest/assertion/rewrite.py", line 212, in load_module
    py.builtin.exec_(co, mod.__dict__)
  File "/Users/michael/Programming/vyper/tests/conftest.py", line 4, in <module>
    from ethereum.tools import tester
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 656, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 626, in _load_backward_compatible
  File "/Users/michael/viper-venv/lib/python3.6/site-packages/ethereum-2.1.3-py3.6.egg/ethereum/__init__.py", line 11, in <module>
    from . import slogging  # noqa
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 656, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 626, in _load_backward_compatible
  File "/Users/michael/viper-venv/lib/python3.6/site-packages/ethereum-2.1.3-py3.6.egg/ethereum/slogging.py", line 6, in <module>
    from ethereum.utils import bcolors, is_numeric
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 656, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 626, in _load_backward_compatible
  File "/Users/michael/viper-venv/lib/python3.6/site-packages/ethereum-2.1.3-py3.6.egg/ethereum/utils.py", line 2, in <module>
    from Crypto.Hash import keccak
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 656, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 626, in _load_backward_compatible
  File "/Users/michael/viper-venv/lib/python3.6/site-packages/pycryptodome-3.4.6-py3.6-macosx-10.12-x86_64.egg/Crypto/Hash/keccak.py", line 73, in <module>
    """)
  File "/Users/michael/viper-venv/lib/python3.6/site-packages/pycryptodome-3.4.6-py3.6-macosx-10.12-x86_64.egg/Crypto/Util/_raw_api.py", line 171, in load_pycryptodome_raw_lib
    raise OSError("Cannot load native module '%s'" % name)
OSError: Cannot load native module 'Crypto.Hash._keccak'
ERROR: could not load /Users/michael/Programming/vyper/tests/conftest.py