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Sun May 1 12:23:55 EDT 2016 · https://mail.python.org/pipermail/python-dev/2016-May/144401.html

On Sat, 30 Apr 2016 at 21:51 Greg Ewing <greg.ewing at canterbury.ac.nz> wrote:

> It seems that 2to3 is a bit simplistic when it comes to
> translating import statements. I have a module GUI.py2exe
> containing:
>
>     import py2exe.mf as modulefinder
>
> 2to3 translates this into:
>
>     from . import py2exe.mf as modulefinder
>
> which is a syntax error.
>
> It looks like 2to3 is getting confused by the fact that
> there is both a submodule and a top-level module here
> called py2exe.

That sounds right. 2to3 has to inspect the environment to figure out if the
import was meant to be relative or absolute and it's getting confused.

> But the original can only be an absolute
> import because it has a dot in it, so 2to3 shouldn't be
> translating it into a relative one.
>

2to3 is nowhere near that sophisticated for tweaking imports :)

>
> Putting "from __future__ import absolute_import" at the
> top fixes it, but I shouldn't have to do that, should I?
>

There's all sorts of weird stuff going on in that import, like having a dot
in the `from` part of the import instead of doing `from .py2exe import mf
as modulefinder`. Try that tweak and see if that solves your SyntaxError
for some reason.
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[Python-Dev] Bug in 2to3 concerning import statements?