Why am I getting a DistributionNotFound error after attempting to upgrade pip?
installation, pip, python-2.7
Solution
According to this line:
OSError: [Errno 13] Permission denied: '/usr/local/bin/pip'
It seems like a *nix permission issue, try to launch the upgrade using sudo:
sudo pip install --upgrade pip
On a side note, I'd recommend using this upgrade method: http://www.pip-installer.org/en/latest/installing.html#install-or-upgrade-pip
tl;dr version (thanks to the information given by OP ;)):
1.Download and laucnh get-pip.py from http://www.pip-installer.org/en/latest/installing.html#install-or-upgrade-pip
2.If you get an error about "invalid command 'egg_info'", you'll need to upgrade setup tools using pip install --upgrade setuptools or easy_install -U
Problem
Running `yolk -U` recently I noticed that `pip` needed upgrading from 1.2.1 to 1.4.1 and dutifully attempted to upgrade it with ``` pip install --upgrade pip ``` Though running `yolk -U` again appeared to confirm a successful upgrade (`pip` is no longer listed as being out of date), this generated an error message ``` Downloading/unpacking pip from https://pypi.python.org/packages/source/p/pip/pip-1.4.1.tar.gz#md5=6afbb46aeb48abac658d4df742bff714 Downloading pip-1.4.1.tar.gz (445kB): 445kB downloaded Running setup.py egg_info for package pip warning: no files found matching '*.html' under directory 'docs' warning: no previously-included files matching '*.rst' found under directory 'docs/_build' no previously-included directories found matching 'docs/_build/_sources' Installing collected packages: pip Found existing installation: pip 1.2.1 Uninstalling pip: Exception: Traceback (most recent call last): File "/Library/Python/2.7/site-packages/pip-1.2.1-py2.7.egg/pip/basecommand.py", line 107, in main File "/Library/Python/2.7/site-packages/pip-1.2.1-py2.7.egg/pip/commands/install.py", line 261, in run File "/Library/Python/2.7/site-packages/pip-1.2.1-py2.7.egg/pip/req.py", line 1162, in install File "/Library/Python/2.7/site-packages/pip-1.2.1-py2.7.egg/pip/req.py", line 495, in uninstall File "/Library/Python/2.7/site-packages/pip-1.2.1-py2.7.egg/pip/req.py", line 1492, in remove File "/Library/Python/2.7/site-packages/pip-1.2.1-py2.7.egg/pip/util.py", line 273, in renames File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 299, in move os.unlink(src) OSError: [Errno 13] Permission denied: '/usr/local/bin/pip' ``` And on all my subsequent attempts to use `pip` do as well: ``` Traceback (most recent call last): File "/usr/local/bin/pip", line 5, in <module> from pkg_resources import load_entry_point File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py", line 2603, in <module> line, p, specs = scan_list(VERSION,LINE_END,line,p,(1,2),"version spec") File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py", line 666, in require continue # try the next older version of project File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py", line 565, in resolve pkg_resources.DistributionNotFound: pip==1.2.1 ``` I see that similar problems have been reported before, but none of the suggestions I see help resolve this. I'm stuck, and can't maintain my Python installation. I'm using OS 10.8.4, Python 2.7.2 in `/usr/bin/python`.