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gh-142662: Fix interpreter startup crash when codecs are not initialized yet - #161860

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gh-142662: Fix interpreter startup crash when codecs are not initialized yet#161860
sobolevn wants to merge 1 commit into
python:mainfrom
sobolevn:issue-142662

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@sobolevn sobolevn commented Nov 12, 2026 •
edited by bedevere-app Bot
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This is rather hard to test in the test suite, so I decided to skip the test for rather obvious change :)

Local testing, before:

» ./Programs/_freeze_module crash crash.py crash.h
Assertion failed: (interp->codecs.initialized), function _PyCodec_Lookup, file codecs.c, line 142.
[1]    26986 abort      ./Programs/_freeze_module crash crash.py crash.h

After:

» ./Programs/_freeze_module crash crash.py crash.h
Exception ignored in the internal traceback machinery:
SystemError: null argument to internal routine
SystemError: Codecs are not initialized

Notice that the first error SystemError: null argument to internal routine is unrelated and I will fix it separately.

@sobolevn sobolevn added needs backport to 3.14 bugs and security fixes needs backport to 3.15 bugs and security fixes labels Nov 12, 2026
@bedevere-app bedevere-app Bot mentioned this pull request Nov 12, 2026
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sobolevn commented Nov 12, 2026

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However, note that this does not fix the internal problem that ./Programs/_freeze_module crash crash.py crash.h calls uninitialized interpreter.

@sobolevn sobolevn mentioned this pull request Nov 12, 2026
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