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[Jean-Paul Calderone <exarkun@xxxxxxxxxxxxxxxxx>]

The difference isn't really relevant to Pyflakes.  The example I gave
was meant to be a trivial example of how you can apply the solution.  If
you want a different gettext function to be bound to _, you can have a
different gettext function bound to _.  If you want unicode, use
gettext.ugettext.  If you want a particular domain, use the
gettext.translation function to get an instance of something for the
appropriate domain and then use that object's gettext method.  etc.

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https://bugs.launchpad.net/bugs/844592

Title:
  Recognize _("text") from gettext.install(...)

Status in Pyflakes:
  Won't Fix

Bug description:
  gettext module provides convenience function gettext.install() that
  injects a callable _ [single underscore] into builtins, so that
  internationalized code can be written like this:

  print _("text")

  pyflakes reports every _ as undefined symbol.

  moreover since it is injected in builtins, all imported modules have
  that symbol, thus the following works:

  # main.py
  import gettext
  import somemod
  gettext.install(...)

  #somemod.py
  print _("text")

  I'm not sure what sort of heuristic could be used to recognize _() when pyflake checks somemod.py.
  Perhaps a command line argument for extra builtins?

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