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fabioz mannequin opened this issue Jun 8, 2010 · 8 comments
Closed

Bug in InteractiveConsole /pickle #53189

fabioz mannequin opened this issue Jun 8, 2010 · 8 comments
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3.12 only security fixes 3.13 bugs and security fixes 3.14 bugs and security fixes docs Documentation in the Doc dir

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@fabioz
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fabioz mannequin commented Jun 8, 2010 •
edited by bedevere-app bot
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BPO 8943
Nosy @ncoghlan, @orsenthil, @fabioz, @avassalotti
Files
  • fast_test.py: Code showing the error.
  • interative.py: Another code showing the error
  • backtrace-py3k-8943.txt: preliminary gdb backtrace py3k pickle:save_global
  • issue8943.diff: hg diff Doc/library/code.rst > issue8943.diff
    		•

    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 = None
created_at = <Date 2010-06-08.16:24:21.604>
labels = ['3.8', 'type-bug', 'library', '3.9', '3.10']
title = 'Bug in InteractiveConsole /pickle'
updated_at = <Date 2020-10-28.14:13:37.445>
user = 'https://github.com/fabioz'

    bugs.python.org fields:

    activity = <Date 2020-10-28.14:13:37.445>
actor = 'holdenweb'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2010-06-08.16:24:21.604>
creator = 'fabioz'
dependencies = []
files = ['17589', '19734', '19735', '26917']
hgrepos = []
issue_num = 8943
keywords = ['patch']
message_count = 7.0
messages = ['107328', '107905', '108871', '121898', '121899', '121905', '168631']
nosy_count = 6.0
nosy_names = ['ncoghlan', 'orsenthil', 'fabioz', 'alexandre.vassalotti', 'iuridiniz', 'mjdorma']
pr_nums = []
priority = 'normal'
resolution = None
stage = 'needs patch'
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue8943'
versions = ['Python 3.8', 'Python 3.9', 'Python 3.10']

    Linked PRs
    @fabioz
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    fabioz mannequin commented Jun 8, 2010

    Unable to pickle classes used in the InteractiveConsole. The code attached works in python 2.5 and fails on python 3.1.2.

    @fabioz fabioz mannequin added stdlib Python modules in the Lib dir type-bug An unexpected behavior, bug, or error labels Jun 8, 2010
    @orsenthil
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    Yes, the problem is observed in py3k. Pickle module when used via Interactive console is trying to import the class as __console__.ClassName and it is failing to see the __console__ module.

    _pickle.PicklingError: Can't pickle <class '__console__.Example'>: import of module '__console__' failed

    @avassalotti
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    One easy fix for this would be to make InteractiveConsole use the string "__main__" instead of "__console__". But other than that, I don't think we can fix this within pickle.

    @iuridiniz
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    iuridiniz mannequin commented Nov 21, 2010

    Bug stills on branch
    http://svn.python.org/projects/python/branches/py3k
    branch http://svn.python.org/projects/python/branches/release27-maint is OK

    doing some gdb on 3.2, I have discovered that the problem occurs when trying to dump global Example from module __console__ on py3k/Modules/_pickle.c:save_global:2536

    Python 2.7 never calls save_global (why?)

    in annex: an update test

    @iuridiniz
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    iuridiniz mannequin commented Nov 21, 2010

    preliminary gdb backtrace

    @iuridiniz
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    iuridiniz mannequin commented Nov 21, 2010

    Well, this is a pickle problem or a Interactive console problem?

    on python 2.7 does not save a type "type" (like Example class is)
    2: type->tp_name = 0x58a87c "instance"
    2: type->tp_name = 0x590391 "dict"
    2: type->tp_name = 0x5943b6 "str"
    2: type->tp_name = 0x5943b6 "str"

    on python 3.2 does and when saving a type, it tries to save a global.

    @mjdorma
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    mjdorma mannequin commented Aug 20, 2012

    I'd suggest this is an issue in the doc for the InteractiveInterpreter class.

    Try locals=global() and your problem goes away. (namespace == __main__)...

    @iritkatriel iritkatriel added 3.8 (EOL) end of life 3.9 only security fixes 3.10 only security fixes labels Oct 27, 2020
    @iritkatriel iritkatriel changed the title Bug in InteractiveConsole Bug in InteractiveConsole /pickle Oct 27, 2020
    @ezio-melotti ezio-melotti transferred this issue from another repository Apr 10, 2022
    @iritkatriel iritkatriel added 3.11 only security fixes 3.12 only security fixes and removed 3.9 only security fixes 3.8 (EOL) end of life labels Mar 1, 2023
    @serhiy-storchaka serhiy-storchaka added docs Documentation in the Doc dir 3.13 bugs and security fixes 3.14 bugs and security fixes and removed type-bug An unexpected behavior, bug, or error stdlib Python modules in the Lib dir 3.11 only security fixes 3.10 only security fixes labels Aug 16, 2024
    serhiy-storchaka added a commit to serhiy-storchaka/cpython that referenced this issue Aug 16, 2024
    @serhiy-storchaka
    pythongh-53189: Document peculiarities of InteractiveConsole in relat…
    2fee244 
    …ion to pickle
    @bedevere-app bedevere-app bot mentioned this issue Aug 16, 2024
    Merged
    @serhiy-storchaka
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    The current behavior is reasonable. This is rather a documentation issue than a bug in InteractiveInterpreter or pickle.

    We can clarify this explicitly since it is not obvious.

    encukou pushed a commit that referenced this issue May 20, 2025
    @serhiy-storchaka @terryjreedy
    gh-53189: Document peculiarities of InteractiveConsole in relation to…
    a31bbc9 
    … pickle (GH-123069)

Co-authored-by: Terry Jan Reedy <[email protected]>
    miss-islington pushed a commit to miss-islington/cpython that referenced this issue May 20, 2025
    @serhiy-storchaka @terryjreedy @miss-islington
    pythongh-53189: Document peculiarities of InteractiveConsole in relat…
    4ad68de 
    …ion to pickle (pythonGH-123069)

(cherry picked from commit a31bbc9)

Co-authored-by: Serhiy Storchaka <[email protected]>
Co-authored-by: Terry Jan Reedy <[email protected]>
    miss-islington pushed a commit to miss-islington/cpython that referenced this issue May 20, 2025
    @serhiy-storchaka @terryjreedy @miss-islington
    pythongh-53189: Document peculiarities of InteractiveConsole in relat…
    1887b68 
    …ion to pickle (pythonGH-123069)

(cherry picked from commit a31bbc9)

Co-authored-by: Serhiy Storchaka <[email protected]>
Co-authored-by: Terry Jan Reedy <[email protected]>
    This was referenced May 20, 2025
    Merged
    Merged
    encukou pushed a commit that referenced this issue May 20, 2025
    @miss-islington @serhiy-storchaka @terryjreedy
    [3.14] gh-53189: Document peculiarities of InteractiveConsole in rela…
    a3fa725 
    …tion to pickle (GH-123069) (GH-134328)

gh-53189: Document peculiarities of InteractiveConsole in relation to pickle (GH-123069)

(cherry picked from commit a31bbc9)

Co-authored-by: Serhiy Storchaka <[email protected]>
Co-authored-by: Terry Jan Reedy <[email protected]>
    encukou pushed a commit that referenced this issue May 20, 2025
    @miss-islington @serhiy-storchaka @terryjreedy
    [3.13] gh-53189: Document peculiarities of InteractiveConsole in rela…
    0c0fedf 
    …tion to pickle (GH-123069) (GH-134329)

gh-53189: Document peculiarities of InteractiveConsole in relation to pickle (GH-123069)

(cherry picked from commit a31bbc9)

Co-authored-by: Serhiy Storchaka <[email protected]>
Co-authored-by: Terry Jan Reedy <[email protected]>
    @picnixz picnixz closed this as completed May 20, 2025
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