inspect.getcallargs raises TypeError on valid arguments #55465

assignee = None
closed_at = <Date 2011-03-28.22:41:06.233>
created_at = <Date 2011-02-20.12:11:08.725>
labels = ['type-bug', 'library']
title = 'inspect.getcallargs raises TypeError on valid arguments'
updated_at = <Date 2011-03-28.22:41:06.231>
user = 'https://github.com/durban'

activity = <Date 2011-03-28.22:41:06.231>
actor = 'python-dev'
assignee = 'none'
closed = True
closed_date = <Date 2011-03-28.22:41:06.233>
closer = 'python-dev'
components = ['Library (Lib)']
creation = <Date 2011-02-20.12:11:08.725>
creator = 'daniel.urban'
dependencies = []
files = ['20805', '20911', '20927', '20930', '21281']
hgrepos = []
issue_num = 11256
keywords = ['patch']
message_count = 7.0
messages = ['128902', '128907', '129538', '129608', '129620', '131340', '132439']
nosy_count = 5.0
nosy_names = ['gsakkis', 'benjamin.peterson', 'Trundle', 'daniel.urban', 'python-dev']
pr_nums = []
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue11256'
versions = ['Python 2.7', 'Python 3.2', 'Python 3.3']