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In module re the repeat interval {} doesn't accept numbers greater than 65535 #58122

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py-user mannequin opened this issue Jan 31, 2012 · 2 comments
Closed

In module re the repeat interval {} doesn't accept numbers greater than 65535 #58122

py-user mannequin opened this issue Jan 31, 2012 · 2 comments
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stdlib Python modules in the Lib dir topic-regex type-bug An unexpected behavior, bug, or error

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@py-user
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Mannequin

py-user mannequin commented Jan 31, 2012

BPO 13914
Nosy @vstinner, @ezio-melotti, @py-user

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 2012-01-31.22:36:00.986>
created_at = <Date 2012-01-31.21:45:40.584>
labels = ['expert-regex', 'type-bug', 'library']
title = "In module re the repeat interval {} doesn't accept numbers greater than 65535"
updated_at = <Date 2012-01-31.22:36:00.974>
user = 'https://github.com/py-user'

bugs.python.org fields:

activity = <Date 2012-01-31.22:36:00.974>
actor = 'vstinner'
assignee = 'none'
closed = True
closed_date = <Date 2012-01-31.22:36:00.986>
closer = 'vstinner'
components = ['Library (Lib)', 'Regular Expressions']
creation = <Date 2012-01-31.21:45:40.584>
creator = 'py.user'
dependencies = []
files = []
hgrepos = []
issue_num = 13914
keywords = []
message_count = 2.0
messages = ['152409', '152411']
nosy_count = 3.0
nosy_names = ['vstinner', 'ezio.melotti', 'py.user']
pr_nums = []
priority = 'normal'
resolution = 'duplicate'
stage = None
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue13914'
versions = ['Python 3.2']
@py-user
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py-user mannequin commented Jan 31, 2012 

>>> import re
>>> len(re.search(r'a+', 'a' * 100000).group())
100000
>>>
>>> re.search(r'a{65536,}', 'a' * 100000)
Traceback (most recent call last):
  File "/usr/local/lib/python3.2/functools.py", line 176, in wrapper
    result = cache[key]
KeyError: (<class 'str'>, 'a{65536,}', 0)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python3.2/re.py", line 158, in search
    return _compile(pattern, flags).search(string)
  File "/usr/local/lib/python3.2/re.py", line 255, in _compile
    return _compile_typed(type(pattern), pattern, flags)
  File "/usr/local/lib/python3.2/functools.py", line 180, in wrapper
    result = user_function(*args, **kwds)
  File "/usr/local/lib/python3.2/re.py", line 267, in _compile_typed
    return sre_compile.compile(pattern, flags)
  File "/usr/local/lib/python3.2/sre_compile.py", line 491, in compile
    p = sre_parse.parse(p, flags)
  File "/usr/local/lib/python3.2/sre_parse.py", line 692, in parse
    p = _parse_sub(source, pattern, 0)
  File "/usr/local/lib/python3.2/sre_parse.py", line 315, in _parse_sub
    itemsappend(_parse(source, state))
  File "/usr/local/lib/python3.2/sre_parse.py", line 511, in _parse
    raise error("bad repeat interval")
sre_constants.error: bad repeat interval
>>>
>>>
>>> re.search(r'a{65536}', 'a' * 100000)
Traceback (most recent call last):
  File "/usr/local/lib/python3.2/functools.py", line 176, in wrapper
    result = cache[key]
KeyError: (<class 'str'>, 'a{65536}', 0)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python3.2/re.py", line 158, in search
    return _compile(pattern, flags).search(string)
  File "/usr/local/lib/python3.2/re.py", line 255, in _compile
    return _compile_typed(type(pattern), pattern, flags)
  File "/usr/local/lib/python3.2/functools.py", line 180, in wrapper
    result = user_function(*args, **kwds)
  File "/usr/local/lib/python3.2/re.py", line 267, in _compile_typed
    return sre_compile.compile(pattern, flags)
  File "/usr/local/lib/python3.2/sre_compile.py", line 514, in compile
    groupindex, indexgroup
OverflowError: regular expression code size limit exceeded
>>>

@py-user py-user mannequin added stdlib Python modules in the Lib dir topic-regex type-bug An unexpected behavior, bug, or error labels Jan 31, 2012
@vstinner
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This issue is a duplicate of bpo-13169.

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