Category Archives: python

OSError: [Errno 1] Operation not permitted: Extras/lib/python/six-1.4.1-py2.7.egg-info’

After upgrading some things using homebrew, this error started coming up on a coworker’s machine when he tried to pip install virtualenvwrapper. This error was coming up right before the operation not permitted: Installing collected packages: six Found existing installation: … Continue reading

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ImportError: cannot import name sanitizer when trying to run django

I hope this saves you a couple hours of headaches that I experienced recently. If you get the dreaded error: from html5lib import sanitizer, serializer, treebuilders, treewalkers ImportError: cannot import name sanitizer Never fear. The fix is easy once you … Continue reading

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KeyError: ‘en-us’ when doing a reverse() lookup in urls.py

If you’re getting an error like this: … in reverse_dict return self._reverse_dict[language_code] KeyError: ‘en-us’ If your urls.py file contains a reverse() call, that is the reason.  You’re calling reverse before all the urls are loaded and everything is ready.  You … Continue reading

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How to install mysqldb for python on Mac OSX

Install XCode and the command line tools Install homebrew brew install mysql-connector-c pip install mysql-python

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Unable to load psycopg2 on Mac OSX El Capitan

I upgraded to El Capitan today and of course had to reinstall homebrew and all my python and development tools. I went to try to run a django app on my machine and kept getting this error: django.core.exceptions.ImproperlyConfigured: Error loading … Continue reading

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