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Title: Struct.__init__() can leave the Struct object in inconsistent state · Issue #145743 · python/cpython · GitHub

Open Graph Title: Struct.__init__() can leave the Struct object in inconsistent state · Issue #145743 · python/cpython

X Title: Struct.__init__() can leave the Struct object in inconsistent state · Issue #145743 · python/cpython

Description: Since Struct.__init__() first saves the format in s_format, then sets s_code used to pack/unpack, after calling it with invalid format argument it leaves the Struct object in inconsistent state -- format returns the new (invalid) format,...

Open Graph Description: Since Struct.__init__() first saves the format in s_format, then sets s_code used to pack/unpack, after calling it with invalid format argument it leaves the Struct object in inconsistent state -- ...

X Description: Since Struct.__init__() first saves the format in s_format, then sets s_code used to pack/unpack, after calling it with invalid format argument it leaves the Struct object in inconsistent state -- ...

Opengraph URL: https://github.com/python/cpython/issues/145743

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gh-145743: Fix inconsistency after calling Struct.__init__() with invalid format #145744https://github.com/python/cpython/pull/145744
[3.14] gh-145743: Fix inconsistency after calling Struct.__init__() with invalid format (GH-145744) #145763https://github.com/python/cpython/pull/145763
[3.13] gh-145743: Fix inconsistency after calling Struct.__init__() with invalid format (GH-145744) #145764https://github.com/python/cpython/pull/145764
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