Clarify inspect.is<callable> method docs #49218

assignee = None
closed_at = <Date 2010-10-15.16:53:38.086>
created_at = <Date 2009-01-17.03:26:08.466>
labels = ['docs']
title = 'Clarify inspect.is<callable> method docs'
updated_at = <Date 2010-10-15.16:53:38.085>
user = 'https://github.com/terryjreedy'

activity = <Date 2010-10-15.16:53:38.085>
actor = 'georg.brandl'
assignee = 'docs@python'
closed = True
closed_date = <Date 2010-10-15.16:53:38.086>
closer = 'georg.brandl'
components = ['Documentation']
creation = <Date 2009-01-17.03:26:08.466>
creator = 'terry.reedy'
dependencies = []
files = []
hgrepos = []
issue_num = 4968
keywords = []
message_count = 4.0
messages = ['79999', '109272', '109968', '118802']
nosy_count = 4.0
nosy_names = ['georg.brandl', 'terry.reedy', 'docs@python', 'BreamoreBoy']
pr_nums = []
priority = 'normal'
resolution = 'fixed'
stage = None
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue4968'
versions = ['Python 3.1', 'Python 3.2']