xreload.py won't update class docstrings

[jimjjewett]

BPO	1683288
Nosy	@gvanrossum

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = 'https://github.com/gvanrossum'
closed_at = <Date 2007-08-30.00:21:16.555>
created_at = <Date 2007-03-18.22:48:39.000>
labels = ['library']
title = "xreload.py won't update class docstrings"
updated_at = <Date 2008-01-06.22:29:46.813>
user = 'https://bugs.python.org/jimjjewett'

bugs.python.org fields:

activity = <Date 2008-01-06.22:29:46.813>
actor = 'admin'
assignee = 'gvanrossum'
closed = True
closed_date = <Date 2007-08-30.00:21:16.555>
closer = 'gvanrossum'
components = ['Library (Lib)']
creation = <Date 2007-03-18.22:48:39.000>
creator = 'jimjjewett'
dependencies = []
files = []
hgrepos = []
issue_num = 1683288
keywords = []
message_count = 2.0
messages = ['31567', '55451']
nosy_count = 2.0
nosy_names = ['gvanrossum', 'jimjjewett']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue1683288'
versions = ['Python 3.0']

[jimjjewett]

"""
def _update_class(oldclass, newclass):
...
for name in oldnames & newnames - {"__dict__", "__doc__"}:
setattr(oldclass, name, _update(olddict[name], newdict[name]))
return oldclass
"""

I assume __doc__ is skipped because a string can't be updated in place. But since oldclass is returned, __doc__ should still be replaced with the updated documentation.

[gvanrossum]

I'm not doing development on xreload ATM.