GeezerVison is showing github.com — gh-142662: Fix interpreter startup crash when `codecs` are not initialized yet by sobolevn · Pull Request #161860 · python/cpython
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sobolevn
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Nov 12, 2026
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edited by bedevere-app
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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.
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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.
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