Django Gunicorn wsgi

Question

Hi I am trying to integrate my django 1.4.1 app with Gunicorn 0.14.6. I start gunicorn server from command line like so -

gunicorn -c /home/code/gunicorn_config.py

I get this traceback -

Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/gunicorn/arbiter.py", line 459, in spawn_worker
    worker.init_process()
  File "/usr/local/lib/python2.7/dist-packages/gunicorn/workers/base.py", line 99, in init_process
    self.wsgi = self.app.wsgi()
  File "/usr/local/lib/python2.7/dist-packages/gunicorn/app/base.py", line 101, in wsgi
    self.callable = self.load()
  File "/usr/local/lib/python2.7/dist-packages/gunicorn/app/wsgiapp.py", line 24, in load
    return util.import_app(self.app_uri)
  File "/usr/local/lib/python2.7/dist-packages/gunicorn/util.py", line 292, in import_app
    app = eval(obj, mod.__dict__)
  File "<string>", line 1, in <module>
NameError: name 'application' is not defined

Where am i going wrong? Whats this application variable & where do I need to modify this?

Also since I am using Django1.4.1 I have a wsgi.py file already in my project, do I need to change that?

UPDATE: here is my gunicorn_config.py file contents -

import os
import sys
import multiprocessing

def app_path():
    sys.path.append('/home/code/po/')
    sys.path.append('/home/code/po/ball/')
    return

def num_cpus():
    cpus = 0
    try:
        cpus = os.sysconf("SC_NPROCESSORS_ONLN")
    except:
        cpus =  multiprocessing.cpu_count()

    if cpus: return cpus
    else: return 3

#defining the behavior of gunicorn
app_path()

bind      = "127.0.0.1:8080"
workers   = num_cpus()*2 + 1
debug     = True
daemon    = False
accesslog = '/home/code/logs/guni_access.log'
errorlog  = '/home/code/logs/guni_error.log'
loglevel  = 'debug'
django_settings  = '/home/code/po/po/'
pythonpath       = '/home/code/po/'

@moopet - i dont even think that wsgi.py file is called, how do i make gunicorn pick that file ?

Answer 1

Your django_settings is incorrect. django_settings should be in the form of a python module import that is importable from the Python path you set. So

pythonpath = '/home/code/po'
django_settings = 'po.settings'

To elaborate a bit more, application is the default variable (which should be a WSGI application object) gunicorn will try and import from the Python module that you supply.

So to think about it another way. Say you were trying to run a simple Flask wsgi appication. The actual WSGI app was defined as application and lived inside /home/code/views.py . Then the following would manually start serving it with gunicorn

export PYTHONPATH=/home/code
gunicorn -w 2 views:application

So the variable application inside the views module. You can read about how Django provides you with the application object .

It might be that you need to point gunicorn at the po.wsgi module itself. It's a little hard to tell from the information provided so far. If that module was created properly it should contain a variable called application

Answer 2

Check if another package you have installed already contains a file called wsgi.py. (gevent does.) If so, likely the wrong wsgi.py file is being loaded. Try renaming your wsgi.py file to something else (eg app_wsgi.py) and add run your app using

gunicorn -c /home/code/gunicorn_config.py app_wsgi