Generic mod_wsgi script for Django in a virtualenv

django_generic.wsgi.py

"""
evolved over a couple of deployment of a couple apps...
dropping it here so i don't forget it.
Drop this somewhere in your virtualenv, edit the two environment vars,
and you're done.
"""

import os

os.environ['DJANGO_SETTINGS_MODULE'] = 'CHANGE ME'
os.environ['PYTHON_EGG_CACHE'] = '/tmp/CHANGEME-python-eggs'

import sys
import site

# Some libraries (eg. geopy) have an annoying habit of printing to stdout,
# which is a no-no under mod_wsgi.
# Workaround as per http://code.google.com/p/modwsgi/wiki/ApplicationIssues
sys.stdout = sys.stderr

HERE = os.path.abspath(os.path.dirname(__file__))

# Try to find a virtualenv in our parent directories.
env_root = HERE
found = False
while env_root != '/':
    env_root = os.path.abspath(os.path.dirname(env_root))
    if os.path.exists(os.path.join(env_root, 'bin', 'activate')):
        found = True
        break
assert found, "didn't find a virtualenv in any parent of %s" % HERE

sitepackages_root = os.path.join(env_root, 'lib')
assert os.path.exists(sitepackages_root), "no such dir %s" % sitepackages_root
for d in os.listdir(sitepackages_root):
    if d.startswith('python'):
        site.addsitedir(os.path.join(sitepackages_root, d, 'site-packages'))
        break
else:
    raise RuntimeError("Could not find any site-packages to add in %r" % sitepackages_root)


import django.core.handlers.wsgi
application = django.core.handlers.wsgi.WSGIHandler()