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Generic Autodiscovery

Author:
coleifer
Posted:
April 4, 2011
Language:
Python
Version:
Not specified
Score:
2 (after 4 ratings)

Admin-like autodiscover for your apps.

I have copy/pasted this code too many times...Dynamically autodiscover a particular module_name in a django project's INSTALLED_APPS directories, a-la django admin's autodiscover() method.

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def generic_autodiscover(module_name):
    """
    I have copy/pasted this code too many times...Dynamically autodiscover a
    particular module_name in a django project's INSTALLED_APPS directories,
    a-la django admin's autodiscover() method.
    
    Usage:
        generic_autodiscover('commands') <-- find all commands.py and load 'em
    """
    import imp
    from django.conf import settings

    for app in settings.INSTALLED_APPS:
        try:
            import_module(app)
            app_path = sys.modules[app].__path__
        except AttributeError:
            continue
        try:
            imp.find_module(module_name, app_path)
        except ImportError:
            continue
        import_module('%s.%s' % (app, module_name))
        app_path = sys.modules['%s.%s' % (app, module_name)]

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Comments

michaelmior (on January 4, 2013):

The body of the method can be simplified to the following. I don't think it's necessary to catch exceptions from importing apps (the server will fail to start if this happens anyway). find_module is also not necessary.

from django.conf import settings
from django.utils.importlib import import_module

for app in settings.INSTALLED_APPS:
    try:
        import_module('%s.%s' % (app, module_name))
    except:
        continue

#

bakatrouble (on December 9, 2016):

There is a django.utils.module_loading.autodiscover_modules now

#

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