Importing module from package

Question

I am trying to import a module from a package set up as per instructions from Modules Python Tutorial. My directory tree is:

$ pwd /home/me/lib/python/pygplib $ ls * __init__.py atcf: atcf.py __init__.py

I am able to import pygplib but pygplib.atcf does not seem to exist:

In [1]: import pygplib In [2]: dir(pygplib) Out[2]: ['__builtins__', '__doc__', '__file__', '__name__', '__package__', '__path__']

What am I doing wrong? All my __init__.py files are blank. Thank you.

Have you tried import pygplib.atcf.atcf to get what's in that file? — mVChr
– mVChr, Commented Aug 8, 2012 at 18:21

unutbu · Accepted Answer · 2012-08-08 18:23:24Z

3

atcf is not imported automatically into the pygplib namespace, but you can arrange for this to happen by putting

import atcf

in pygplib/__init__.py.

answered Aug 8, 2012 at 18:23

unutbu

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2 Comments

milancurcic Over a year ago

Thanks, this is exactly what I need, as I would like to have submodules available in the namespace on package import.

unutbu Over a year ago

Also note that if you want the stuff in atcf.py to be in the pygplib.atcf namespace, you'll want to put from atcf import * in pyglib/atcf/__init__.py.

David Robinson · Accepted Answer · 2012-08-08 18:19:45Z

Submodules don't get imported when you import the top package, and thus don't appear in dir. Instead, do

from pygplib import atcf

Or

from pygplib.atcf import atcf

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