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Created on 2016-01-02 04:28 by dangyogi, last changed 2022-04-11 14:58 by admin. This issue is now closed.
| Files | ||||
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| File name | Uploaded | Description | Edit | |
| doc_library_readline.patch | Daniel Dye, 2016-01-09 09:47 | Patch the Doc/library/readline.rst file | review | |
| Messages (6) | |||
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| msg257325 - (view) | Author: Bruce Frederiksen (dangyogi) | Date: 2016-01-02 04:28 | |
The Example in the readline documentation (section 6.7 of the Library Reference) shows how to save your readline history in a file, and restore it each time you start Python. The problem with the Example is that it does not include a call to readline.set_history_length and the default is -1 (infinite). As a Python developer, I start Python quite a lot and had a .python_history file that was 850M bytes. Just starting Python was causing my system to thrash before the first prompt (>>>) even appeared. I suggest adding the following line to the example to avoid this: readline.set_history_length(1000) I'm not sure how far back this goes in terms of earlier versions of Python, but probably quite far. |
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| msg257778 - (view) | Author: Martin Panter (martin.panter) *  |
Date: 2016-01-08 21:03 | |
What version of Readline are you using? Is it perhaps Editline (libedit)? When I experimented with Editline on Linux once, I think I saw the history file doubling in size every time I ran Python. Maybe that is what you are seeing. |
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| msg257813 - (view) | Author: Daniel Dye (Daniel Dye) | Date: 2016-01-09 09:47 | |
Add a history length of 1000 lines Default is -1 (infinite), which may grow unruly |
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| msg258020 - (view) | Author: Roundup Robot (python-dev)  |
Date: 2016-01-11 21:31 | |
New changeset 9a2c891a4333 by Ezio Melotti in branch '2.7': #25991: fix readline example to limit history size. Patch by Daniel Dye. https://hg.python.org/cpython/rev/9a2c891a4333 New changeset 416db1a2fb81 by Ezio Melotti in branch '3.5': #25991: fix readline example to limit history size. Patch by Daniel Dye. https://hg.python.org/cpython/rev/416db1a2fb81 New changeset cb08e5271cc0 by Ezio Melotti in branch 'default': #25991: merge with 3.5. https://hg.python.org/cpython/rev/cb08e5271cc0 |
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| msg258021 - (view) | Author: Ezio Melotti (ezio.melotti) * |
Date: 2016-01-11 21:32 | |
Fixed, thanks for the patch! |
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| msg258053 - (view) | Author: Martin Panter (martin.panter) * |
Date: 2016-01-12 02:02 | |
Thanks Ezio for handling this. Ignore my previous comment; I missed the key word “example” :) |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:58:25 | admin | set | github: 70179 |
| 2016-01-12 02:02:18 | martin.panter | set | messages: + msg258053 |
| 2016-01-11 21:32:45 | ezio.melotti | set | status: open -> closed resolution: fixed messages: + msg258021 stage: needs patch -> resolved |
| 2016-01-11 21:31:51 | python-dev | set | nosy:
+ python-dev messages: + msg258020 |
| 2016-01-09 09:47:48 | Daniel Dye | set | files:
+ doc_library_readline.patch nosy: + Daniel Dye messages: + msg257813 keywords: + patch |
| 2016-01-08 21:03:51 | martin.panter | set | nosy:
+ martin.panter messages: + msg257778 |
| 2016-01-08 17:50:19 | ezio.melotti | set | versions:
+ Python 2.7, Python 3.5, Python 3.6, - Python 3.4 nosy: + ezio.melotti keywords: + easy type: resource usage -> enhancement stage: needs patch |
| 2016-01-02 04:28:53 | dangyogi | create | |