[Python-Dev] ImportWarning flood

[Ralf W. Grosse-Kunstleve]

--- Jean-Paul Calderone <exarkun at divmod.com> wrote:
> I think it is safe to say that Twisted is more widely used than anything
> Google has yet released.  Twisted also has a reasonably plausible
> technical reason to dislike this change.  Google has a bunch of engineers
> who, apparently, cannot remember to create an empty __init__.py file in
> some directories sometimes.

Simply adding a note to the ImportError message would solve this problem "just
in time":

>>> import mypackage.foo
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
ImportError: No module named mypackage.foo
    Note that subdirectories are searched for imports only if they contain an
    __init__.py file: http://www.python.org/doc/essays/packages.html


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