There is no module named "pip._vendor.cachecontrol"

Question

Running pip on OSX gives the following error:

Traceback (most recent call last): File "/usr/local/bin/pip", line 9, in <module> load_entry_point('pip==6.0.6', 'console_scripts', 'pip')() File "build/bdist.macosx-10.10-x86_64/egg/pkg_resources/__init__.py", line 519, in load_entry_point File "build/bdist.macosx-10.10-x86_64/egg/pkg_resources/__init__.py", line 2630, in load_entry_point File "build/bdist.macosx-10.10-x86_64/egg/pkg_resources/__init__.py", line 2310, in load File "build/bdist.macosx-10.10-x86_64/egg/pkg_resources/__init__.py", line 2316, in resolve File "/usr/local/Cellar/python/2.7.7_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pip-6.0.6-py2.7.egg/pip/__init__.py", line 15, in <module> from pip.vcs import git, mercurial, subversion, bazaar # noqa File "/usr/local/Cellar/python/2.7.7_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pip-6.0.6-py2.7.egg/pip/vcs/mercurial.py", line 11, in <module> from pip.download import path_to_url File "/usr/local/Cellar/python/2.7.7_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pip-6.0.6-py2.7.egg/pip/download.py", line 36, in <module> from pip._vendor.cachecontrol import CacheControlAdapter File "/usr/local/Cellar/python/2.7.7_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pip-6.0.6-py2.7.egg/pip/_vendor/__init__.py", line 81, in load_module raise ImportError("No module named '%s'" % (name,)) ImportError: No module named 'pip._vendor.cachecontrol' 

Any idea what I'm doing wrong?

Answer 1

Make sure your system is installed with OpenSSL.

if OSX,

$ brew install openssl

https://github.com/pypa/pip/issues/2345