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cp65001, PowerShell, Python crash. #55129

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Jean-MichelFauth mannequin opened this issue Jan 16, 2011 · 5 comments
Closed

cp65001, PowerShell, Python crash. #55129

Jean-MichelFauth mannequin opened this issue Jan 16, 2011 · 5 comments
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OS-windows type-crash A hard crash of the interpreter, possibly with a core dump

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@Jean-MichelFauth
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Mannequin

Jean-MichelFauth mannequin commented Jan 16, 2011

BPO 10920
Nosy @pitrou, @vstinner

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 = None
closed_at = <Date 2011-01-18.21:40:47.650>
created_at = <Date 2011-01-16.19:47:38.500>
labels = ['OS-windows', 'type-crash']
title = 'cp65001, PowerShell, Python crash.'
updated_at = <Date 2011-10-26.23:49:03.086>
user = 'https://bugs.python.org/Jean-MichelFauth'

bugs.python.org fields:

activity = <Date 2011-10-26.23:49:03.086>
actor = 'vstinner'
assignee = 'none'
closed = True
closed_date = <Date 2011-01-18.21:40:47.650>
closer = 'vstinner'
components = ['Windows']
creation = <Date 2011-01-16.19:47:38.500>
creator = 'Jean-Michel.Fauth'
dependencies = []
files = []
hgrepos = []
issue_num = 10920
keywords = []
message_count = 5.0
messages = ['126370', '126378', '126379', '126381', '146469']
nosy_count = 3.0
nosy_names = ['pitrou', 'vstinner', 'Jean-Michel.Fauth']
pr_nums = []
priority = 'high'
resolution = 'duplicate'
stage = None
status = 'closed'
superseder = None
type = 'crash'
url = 'https://bugs.python.org/issue10920'
versions = ['Python 3.2']
@Jean-MichelFauth
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Jean-MichelFauth mannequin commented Jan 16, 2011

Just relying a discussion open on comp.lang.python,
http://groups.google.com/group/comp.lang.python/browse_thread/thread/771aa9081ad6584c#

  1. Windows 7, open PowerShell
  2. Change code page to cp65001
  3. Launch Python3.1.2 or Python3.2.rc1 -> crash

Key points:

  • The fact that Python does not recognize cp65001 is "ok".
  • The Python crash is unexpected.

@Jean-MichelFauth Jean-MichelFauth mannequin added OS-windows type-crash A hard crash of the interpreter, possibly with a core dump labels Jan 16, 2011
@pitrou
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pitrou commented Jan 16, 2011

Probably a legitimate "crash" (aka deliberate abort), since Python needs an encoding for its standard input/output text streams, and the encoding suggested by the system ("cp65001") isn't supported.

@vstinner
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PS D:\jm> chcp 65001
Page de codes active : 65001

Please don't do that: it is useless (it doesn't help to display or read more unicode characters) and it breaks Windows console: see issue bpo-1602 (especially msg120414 and msg126303), and maybe also issue bpo-6058.

@vstinner
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If the "crash" is the following message, this issue is a duplicate of bpo-6058.
---
PS D:\jm> c:\python31\python.exe
Fatal Python error: Py_Initialize: can't initialize sys standard
streams
LookupError: unknown encoding: cp65001
---
It is not a crash: Python has no codec for the code page 65001, that's all. I closed bpo-6058 because cp65001 cannot be set as an alias to utf-8. Anyway, use 65001 as console encoding is not a good idea. I close this issue: see bpo-1602 for more information.

@vstinner
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I added a cp65001 codec to Python 3.3: see issue bpo-13216. So Python will not "crash" anymore if the console code page is set to cp65001.

@ezio-melotti ezio-melotti transferred this issue from another repository Apr 10, 2022
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