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gh-158001: No longer read global config vars in PyConfig_Read() - #158014
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vstinner merged 1 commit intoSep 23, 2026
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PyConfig_Read() and _PyPreConfig_Read() no longer read global config variables (such as Py_BytesWarningFlag). Instead, PyConfig_Read() now copies PyPreConfig members (isolated, use_environment and dev_mode). _PyPreConfig_Read() still reads the last global configuration variable: Py_UTF8Mode.
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PyConfig_Read() and _PyPreConfig_Read() no longer read global config variables (such as Py_BytesWarningFlag). Instead, PyConfig_Read() now copies PyPreConfig members (isolated, use_environment and dev_mode).
_PyPreConfig_Read() still reads the last global configuration variable: Py_UTF8Mode.