pip broke. how to fix DistributionNotFound error?

Question

Whenever i try to use pip I get an error. For exampple:

$ sudo pip install gevent-websocket

Traceback (most recent call last):  
File "/usr/local/bin/pip", line 5, in <module>
from pkg_resources import load_entry_point
File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 2675, in <module>
parse_requirements(__requires__), Environment()
File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 552, in resolve
raise DistributionNotFound(req)
pkg_resources.DistributionNotFound: pip==0.8.1

I feel tempted to change the value of into pip==0.8.2.. but I dont feel dealing with the consequences of 'hacking' up my installation... I'm running python 2.7 and pip is at version 0.8.2.

Answer 1

I was facing the similar problem in OSx. My stacktrace was saying

raise DistributionNotFound(req)
pkg_resources.DistributionNotFound: setuptools>=11.3

Then I did the following

sudo pip install --upgrade setuptools

This solved the problem for me. Hope someone will find this useful.

Answer 2

I had this problem because I installed python/pip with a weird ~/.pydistutils.cfg that I didn't remember writing. Deleted it, reinstalled (with pybrew), and everything was fine.

Answer 3

In my case (sam problem, but other packages) there was no version dependency. A sequence of pip uninstall and pip insstall did help.

Answer 4

I replaced 0.8.1 in 0.8.2 in /usr/local/bin/pip and everything worked again.

__requires__ = 'pip==0.8.2'
import sys
from pkg_resources import load_entry_point

if __name__ == '__main__':
    sys.exit(
        load_entry_point('pip==0.8.2', 'console_scripts', 'pip')()
    )

I installed pip through easy_install which probably caused me this headache. I think this is how you should do it nowadays..

$ sudo apt-get install python-pip python-dev build-essential 
$ sudo pip install --upgrade pip 
$ sudo pip install --upgrade virtualenv

Answer 5

I was able to resolve this like so:

$ brew update
$ brew doctor
$ brew uninstall python
$ brew install python --build-from-source    # took ~5 mins
$ python --version                           # => Python 2.7.9
$ pip install --upgrade pip

I'm running w/ the following stuff (as of Jan 2, 2015):

OS X Yosemite
Version 10.10.1

$ brew -v
Homebrew 0.9.5

$ python --version
Python 2.7.9

$ ipython --version
2.2.0

$ pip --version
pip 6.0.3 from /usr/local/Cellar/python/2.7.9/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pip-6.0.3-py2.7.egg (python 2.7)

$ which pip
/usr/local/bin/pip

Answer 6

Try re-installing with the get-pip script:

wget https://bootstrap.pypa.io/get-pip.py
sudo python3 get-pip.py

This is sourced from the pip Github page, and worked for me.