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Addressing feedback from pull request

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This commit is contained in:
Mathias J. Hennig 2015-07-27 15:32:23 +02:00
parent c8f19f0afc
commit b3767ae59f
1 changed files with 5 additions and 6 deletions
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11
flask/_compat.py
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@ -54,15 +54,14 @@ else:
def with_metaclass(meta, *bases):
"""Create a base class with a metaclass."""
# This requires a bit of explanation: the basic idea is to make a
# dummy metaclass for one level of class instantiation that replaces
# itself with the actual metaclass.
#
# This has the advantage over six.with_metaclass in that it does not
# introduce dummy classes into the final MRO.
constructor = lambda c, name, b, dct: meta(name, bases, dct)
metaclass = type('with_metaclass', (type,), {'__new__': constructor})
return type.__new__(metaclass, 'temporary_class', (object,), {})
class metaclass(type):
def __new__(cls, name, this_bases, d):
return meta(name, bases, d)
return type.__new__(metaclass, 'temporary_class', (), {})
# Certain versions of pypy have a bug where clearing the exception stack