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recursive __attribute__ -> Fatal Python error: Cannot recover from stack overflow. #51587

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kaizhu mannequin opened this issue Nov 17, 2009 · 5 comments
Closed

recursive __attribute__ -> Fatal Python error: Cannot recover from stack overflow. #51587

kaizhu mannequin opened this issue Nov 17, 2009 · 5 comments
Labels
interpreter-core (Objects, Python, Grammar, and Parser dirs) type-bug An unexpected behavior, bug, or error

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@kaizhu
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Mannequin

kaizhu mannequin commented Nov 17, 2009

BPO 7338
Nosy @loewis, @terryjreedy, @pitrou, @ezio-melotti, @serwy
Superseder
  • bpo-6028: Interpreter aborts when chaining an infinite number of exceptions
    		•

    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 2011-12-24.22:47:36.805>
created_at = <Date 2009-11-17.11:01:32.836>
labels = ['interpreter-core', 'type-bug']
title = 'recursive __attribute__ -> Fatal Python error: Cannot recover from stack overflow.'
updated_at = <Date 2011-12-24.22:47:36.804>
user = 'https://bugs.python.org/kaizhu'

    bugs.python.org fields:

    activity = <Date 2011-12-24.22:47:36.804>
actor = 'terry.reedy'
assignee = 'none'
closed = True
closed_date = <Date 2011-12-24.22:47:36.805>
closer = 'terry.reedy'
components = ['Interpreter Core']
creation = <Date 2009-11-17.11:01:32.836>
creator = 'kaizhu'
dependencies = []
files = []
hgrepos = []
issue_num = 7338
keywords = []
message_count = 5.0
messages = ['95381', '95382', '150233', '150236', '150239']
nosy_count = 6.0
nosy_names = ['loewis', 'terry.reedy', 'pitrou', 'ezio.melotti', 'roger.serwy', 'kaizhu']
pr_nums = []
priority = 'normal'
resolution = 'duplicate'
stage = None
status = 'closed'
superseder = '6028'
type = 'behavior'
url = 'https://bugs.python.org/issue7338'
versions = ['Python 3.2', 'Python 3.3']
    @kaizhu
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    kaizhu mannequin commented Nov 17, 2009 

    Python 3.1.1 (r311:74480, Sep 13 2009, 17:17:12)
[GCC 4.3.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> class Foo(object):
...   def __getattribute__(self, attr):
...     try: return object.__getattribute__(attr)
...     except: return self.x
...
>>> Foo().y
Fatal Python error: Cannot recover from stack overflow.
Aborted
$

    python2.6 recovers from above w/ a RuntimeError

    @kaizhu kaizhu mannequin added type-crash A hard crash of the interpreter, possibly with a core dump interpreter-core (Objects, Python, Grammar, and Parser dirs) labels Nov 17, 2009
    @pitrou
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    pitrou commented Nov 17, 2009

    This is normal. By doing "except: return self.x", you are reinvoking
    __getattribute__ as soon as the RuntimeError is raised, and forcing the
    interpreter into another infinite recursion.

    @ezio-melotti
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    This is normal.

    Can this be closed then?

    @serwy
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    serwy mannequin commented Dec 24, 2011

    This is related to bpo-13644.

    @terryjreedy
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    This seems to be a duplicate of 3555 and 6028. I am redirecting to the latter because is has a proposed patch.

    @terryjreedy terryjreedy added type-bug An unexpected behavior, bug, or error and removed type-crash A hard crash of the interpreter, possibly with a core dump labels Dec 24, 2011
    @ezio-melotti ezio-melotti transferred this issue from another repository Apr 10, 2022
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