[New-bugs-announce] [issue5021] doctest.testfile should set __name__, can't use namedtuple

[Tom Lynn]

New submission from Tom Lynn <tlynn at users.sourceforge.net>:

This file fails when run with doctest.testfile::

  >>> print __name__
  __builtin__
  >>> print globals()['__name__']  # fails with KeyError: __name__
  __builtin__

"__builtin__" is probably not a good value, but more importantly, this 
means that you can't use namedtuples in text file doctests, since 
namedtuple() inspects the calling frame::

  >>> from namedtuple import namedtuple
  >>> t = namedtuple('fred', 'x')  # fails

(I presume this is the same for "from collections import namedtuple", 
but I've not tested with 2.6+.)

A workaround is to add this line at the start of the test::

   >>> __name__ = 'test'

----------
components: Library (Lib)
messages: 80322
nosy: tlynn
severity: normal
status: open
title: doctest.testfile should set __name__, can't use namedtuple
type: feature request
versions: Python 2.5

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue5021>
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