Question

I basically need to know the version of an specific application that it is installed and added to

INSTALLED_APPS = (
    ...
    'the_application',
    ...
)

I know that I can use pip freeze. I know the version of the application in my current virtual environment.

The problem is I want to support two versions of the_application.

Something like settings.INSTALLED_APP[‘the_application’].get_version() would be what I am looking for…

Answer 1

A module / app will typically expose its version via a module level __version__ attribute. For example:

import gunicorn
print gunicorn.__version__ # Prints version

import haystack
print haystack.__version__ 

Some caveats are in order:

• It is not guaranteed; check
• The “format” in which the app will expose its version will differ. For example, the first print above printed '0.15.0' on my test system; the second one printed (2, 0, 0, 'beta') on the same system.