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re.compile is compiling a invalid regex #105121

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mrwbarg opened this issue May 30, 2023 · 2 comments
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re.compile is compiling a invalid regex #105121

mrwbarg opened this issue May 30, 2023 · 2 comments
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type-bug An unexpected behavior, bug, or error

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@mrwbarg
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mrwbarg commented May 30, 2023

Bug report

re.compile is compiling a invalid regex.

Your environment

  • CPython versions tested on: 3.11.3
  • Operating system and architecture: Windows 10 x64

re.compile compiles the following expression: "[0-9]++"
which should be invalid regex.
@mrwbarg mrwbarg added the type-bug An unexpected behavior, bug, or error label May 30, 2023
@mrwbarg mrwbarg mentioned this issue May 30, 2023
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@lukeroot
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Possessive quantifiers were added in 3.11 #34627

@terryjreedy
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See https://docs.python.org/3/library/re.html#regular-expression-syntax. Beginners, especially, should direct questions about syntax to https://discuss.python.org/c/users/7.

@terryjreedy terryjreedy closed this as not planned Won't fix, can't repro, duplicate, stale May 31, 2023
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@lukeroot @terryjreedy @mrwbarg