python - Get all user defined classes in a file -


if have file, first.py, looks -

class person(object):     pass  class dog(object):     pass

and have second file, second.py. how can classes defined in first.py in second.py?

perhaps should mention use-case i'm trying implement similar 1 happens when initializing models in django - when run manage.py sql myapp command, assume django goes through models in models.py , generates sql query them.

so i'm trying similar django when takes models defined in models.py.

how can user defined classes file? (unless there's smarter way django does)

thanks in advance!

if have file first.py, in second.py, have write following code return user-defined classes in first.py:

import first types import * userdefinedclasses = [i in dir(first) if type(getattr(first, i)) typetype]

in simple example, pre-defining first.py, dir(first) return list ['dog', 'person', '__builtins__', '__doc__', '__file__', '__name__', '__package__']. prune it, have use above compressed loop check type of each object in directory of first.

this return objects in first type "type", practically user-defined classes.


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