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To: python-list@python.org
From: Peter Otten <__peter__@web.de>
Subject: Re: [Python-Dev] Issues about relative& absolute import way for Portingfrom python2.4 to python2.7
Date: Thu, 20 Mar 2014 08:21:03 +0100
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Xref: csiph.com comp.lang.python:68570

北冰洋 wrote:

> I just wrote a sample like this:
> testPy/
>          __init__.py
>          client.py
>          SoamFactory.c
>          SoamFactory.so
>          soamapi.py
>          sample/testP.py
> export PYTHONPATH=$(TEST_LOCATION):$(TEST_LOCATION)/testPy

> I found that soamapi was imported twice, and I investigated this is

> I don't know how to fix it. Is there any official way about how to porting
> this scenario or better idea?

Without looking into the details -- I believe that your problem stems from 
having a path into the package:

> export PYTHONPATH=$(TEST_LOCATION):$(TEST_LOCATION)/testPy

The above means that a module testPy.foo can also successfully be imported 
as foo. Try changing the path to

export PYTHONPATH=$(TEST_LOCATION)

If you get failing imports change every failing import

import foo

to

from testPy import foo