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From: Ian Kelly <ian.g.kelly@gmail.com>
Date: Fri, 16 Mar 2012 16:18:07 -0600
Subject: Re: avoid import short-circuiting
To: Andrea Crotti <andrea.crotti.0@gmail.com>
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Xref: csiph.com comp.lang.python:21784

On Fri, Mar 16, 2012 at 4:04 PM, Andrea Crotti
<andrea.crotti.0@gmail.com> wrote:
>> You want to monkeypatch __builtin__.__import__() instead. It always gets
>> called.
>>
>
> Seems like a good idea :)
>
> My first attempt failes though
>
>
> def full(module):
> =A0 =A0from __builtin__ import __import__
> =A0 =A0ls =3D []
> =A0 =A0orig =3D __import__
>
> =A0 =A0def my_import(name):
> =A0 =A0 =A0 =A0ls.append(name)
> =A0 =A0 =A0 =A0orig(name)
>
> =A0 =A0__import__ =3D my_import
> =A0 =A0__import__(module)
> =A0 =A0__import__ =3D orig
> =A0 =A0return ls
>
>
> it imports only the first element and doesn't import the dependencies..
> Any hints?

You didn't actually monkey-patch it.  You just created a local called
__import__ that stores a wrapped version of the function.  You need to
actually replace it in the __builtin__ module:

import __builtin__
__builtin__.__import__ =3D my_import

Cheers,
Ian