Issue 1053687: PyOS_InputHook not called in IDLE subprocess (original) (raw)
Issue1053687
Created on 2004-10-25 12:31 by mdehoon, last changed 2022-04-11 14:56 by admin. This issue is now closed.
| Messages (5) | ||
|---|---|---|
| msg22850 - (view) | Author: Michiel de Hoon (mdehoon) * | Date: 2004-10-25 12:31 |
| PyOS_InputHook is a variable points to a user-defined function (e.g. in an extension module) that is to be called periodically when Python is idle (e.g. waiting for user input). It is used for example by Tkinter to get messages delivered to the graphics window. For Python run from the command prompt, PyOS_InputHook (if not NULL) is called ten times per second. In IDLE, when a subprocess is being used (so the default behavior), the main process and the subprocess each have their own PyOS_InputHook. The problem is that the subprocess (the one that runs the user's commands) does not call PyOS_InputHook. So if a user (in IDLE) imports an extension module that sets PyOS_InputHook, the extension module will not run correctly as PyOS_InputHook is being ignored. The solution to this problem is probably quite simple, maybe just a line if (PyOS_InputHook) PyOS_InputHook(); but I am not familiar enough with threads to be able to figure out what the best location for such a line would be. I tried putting it inside the loop in PyEval_EvalFrame in Python/ceval.c, which solved the problem on some platforms but not on others. --Michiel. | ||
| msg109741 - (view) | Author: Mark Lawrence (BreamoreBoy) * | Date: 2010-07-09 14:07 |
| Wuld anyone with the relevant expertise care to comment on this please? | ||
| msg145851 - (view) | Author: Roger Serwy (roger.serwy) *  |
Date: 2011-10-18 18:25 |
| This is related to http://bugs.python.org/issue989712 | ||
| msg156778 - (view) | Author: Andrew Svetlov (asvetlov) * |
Date: 2012-03-25 21:51 |
| Let's look on IDLE only. The problem has been fixed by #989712 I will close the issue next week if no objections. | ||
| msg157493 - (view) | Author: Andrew Svetlov (asvetlov) * |
Date: 2012-04-04 16:40 |
| Closing as wan't fix. |
| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:56:07 | admin | set | github: 41074 |
| 2012-04-04 16:40:33 | asvetlov | set | status: open -> closedmessages: + assignee: kbk -> asvetlovresolution: wont fixstage: test needed -> resolved |
| 2012-03-26 13:27:48 | asvetlov | set | versions: + Python 3.3, - Python 3.1, Python 2.7, Python 3.2 |
| 2012-03-25 21:51:21 | asvetlov | set | messages: + |
| 2012-03-21 11:58:21 | asvetlov | set | nosy: + asvetlov |
| 2011-10-18 18:25:51 | roger.serwy | set | nosy: + roger.serwymessages: + |
| 2010-08-19 17:56:33 | BreamoreBoy | set | nosy: + gpolo |
| 2010-07-09 14:07:57 | BreamoreBoy | set | nosy: + BreamoreBoytitle: PyOS_InputHook not called in subprocess -> PyOS_InputHook not called in IDLE subprocessmessages: + versions: + Python 3.1, Python 2.7, Python 3.2, - Python 2.6 |
| 2009-02-14 18:19:12 | ajaksu2 | set | stage: test neededtype: behaviorversions: + Python 2.6, - Python 2.5 |
| 2004-10-25 12:31:42 | mdehoon | create |