Issue 4795: inspect.isgeneratorfunction inconsistent with other inspect functions (original) (raw)

Issue4795

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classification

Title:	inspect.isgeneratorfunction inconsistent with other inspect functions
Type:	behavior	Stage:
Components:	Library (Lib)	Versions:	Python 2.6

process

Status:	closed	Resolution:	fixed
Dependencies:		Superseder:
Assigned To:		Nosy List:	benjamin.peterson, rhettinger, steven.daprano
Priority:	normal	Keywords:

Created on 2008-12-31 22:47 by steven.daprano, last changed 2022-04-11 14:56 by admin. This issue is now closed.

Messages (3)
msg78661 - (view)	Author: Steven D'Aprano (steven.daprano) *	Date: 2008-12-31 22:47
The inspect isSOMETHING() functions all return True or False, except for isgeneratorfunction(), which returns True or None. The body of the function is very brief: if (isfunction(object) or ismethod(object)) and \ object.func_code.co_flags & CO_GENERATOR: return True The behaviour can be made consistent with the other routines by either appending "else: return False", or changing the body to: return bool( (isfunction(object) or ismethod(object)) and object.func_code.co_flags & CO_GENERATOR)
msg78667 - (view)	Author: Benjamin Peterson (benjamin.peterson) *	Date: 2008-12-31 23:48
Fixed in r68112.
msg78674 - (view)	Author: Raymond Hettinger (rhettinger) *	Date: 2009-01-01 01:31
This can be simplified to just: return (isfunction(object) or ismethod(object)) and \ object.func_code.co_flags & CO_GENERATOR No need for patterns like: if cond: return True return False

History
Date	User	Action	Args
2022-04-11 14:56:43	admin	set	github: 49045
2009-01-01 01:31:56	rhettinger	set	nosy: + rhettingermessages: +
2008-12-31 23:48:50	benjamin.peterson	set	status: open -> closedresolution: fixedmessages: + nosy: + benjamin.peterson
2008-12-31 22:47:06	steven.daprano	create