Django - rest framework errors when python runserver - django

Question

File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/wsgiref/handlers.py", line 85, in run
self.result = application(self.environ, self.start_response)
File "/Library/Python/2.7/site-packages/dj_static.py", line 83, in __call__
return self.application(environ, start_response)
File "/Library/Python/2.7/site-packages/django/core/handlers/wsgi.py", line 255, in __call__
response = self.get_response(request)
File "/Library/Python/2.7/site-packages/django/core/handlers/base.py", line 178, in get_response
response = self.handle_uncaught_exception(request, resolver, sys.exc_info())
File "/Library/Python/2.7/site-packages/django/core/handlers/base.py", line 220, in handle_uncaught_exception
if resolver.urlconf_module is None:
File "/Library/Python/2.7/site-packages/django/core/urlresolvers.py", line 342, in urlconf_module
self._urlconf_module = import_module(self.urlconf_name)
File "/Library/Python/2.7/site-packages/django/utils/importlib.py", line 35, in import_module
__import__(name)
File "/Users/WillRedington/Desktop/Django Projects/propadev/propvocab/urls.py", line 3, in <module>
from rest_framework import routers
File "/Library/Python/2.7/site-packages/rest_framework/routers.py", line 23, in <module>
from rest_framework import views
File "/Library/Python/2.7/site-packages/rest_framework/views.py", line 11, in <module>
from rest_framework.compat import HttpResponseBase, View
File "/Library/Python/2.7/site-packages/rest_framework/compat.py", line 13, in <module>
from django.utils.six.moves.urllib import parse as urlparse
ImportError: No module named urllib
The server error message: [17/Dec/2014 16:26:45] "GET / HTTP/1.1" 500 59
This is checking if python returns the modules:
>>> import django.utils.six.moves
>>> import django.utils.six.moves.urllib
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: No module named urllib
>>>
My current python version is 2.7.2, Django is 1.5.1, rest framework is in 2.7 site-package.
I have already tried uninstalling and reinstalling Django several times and get the same error.
This is running on Mac OS X 10.9.5, please help me, I've been at this for 5 hours.

Answer 1

it seems like a dependency error. Maybe you downgraded your django, or randomly installed the rest framework package without controlling the dependencies.
django.utils.six.moves.urllib doesnt exist in django==1.5.1 yet. You can try to upgrade django to 1.5.7 for example. Then this import will work. Other things might still be broken though, I can´t tell from here. If you post the output of pip freeze here, it may be easier to help.
You aren´t working in a virtual environment, which is dangerous for dependencies. Best is to make a virtualenv, then install your packages with pip, taking care of dependencies.
Then run:
pip freeze > requirements.txt
and use that file in the future like this:
pip install -r requirements.txt
and edit the file accordingly if you install, update or remove packages.
Something that might be of interest is this: it generally never works to uninstall and reinstall the same package several times; if it doesn´t work once, it won´t work the second time either.

Answer 2

As someone mentioned before my response wasn't really an answer. I solved this error and potentially many more by installing a python virtual environment. To do this run the following
sudo pip install virtualenv
Then create a new folder for your virtual environments. cd into the created folder.
cd myvirtualenv
Then create a new virtual environment by running the following:
virtualenv venv
To run the virtual env:
source venv/bin/activate
This makes a seperate environment with it's own site packages, which is essential for any python developer, especially when working on multiple projects.
Source: http://docs.python-guide.org/en/latest/dev/virtualenvs/