mike bayer added the comment:
OK well, let me just note what the issue is, and I think this is pretty
backwards-incompatible, and additionally I really can't find any reasonable way
of working around it except for just deleting __wrapped__. It would be nice if
there were some recipe or documentation that could point people to how do do
the following pattern:
import functools
import inspect
def my_wrapper(fn):
def wrapped(x, y, z):
return my_func(x, y)
wrapped = functools.update_wrapper(wrapped, fn)
return wrapped
def my_func(x, y):
pass
wrapper = my_wrapper(my_func)
# passes for 2.6 - 3.3, fails on 3.4
assert inspect.getargspec(wrapper) == (['x', 'y', 'z'], None, None, None),
inspect.getargspec(wrapper)
basically in Alembic we copy out a bunch of decorated functions out somewhere
else using inspect(), and that code relies upon seeing the wrappers list of
arguments, not the wrapped. Not that Python 3.4's behavior isn't correct now,
but this seems like something that might be somewhat common.
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue17482>
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