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gh-148790: Defer _PyRuntime_Initialize to Py_InitializeFromConfig. #121628

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Merged
ZeroIntensity merged 2 commits into from
Apr 20, 2026
+1 −7
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gh-148790: Defer _PyRuntime_Initialize to Py_InitializeFromConfig. #121628

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34c941c
Defer _PyRuntime_Initialize to Py_InitializeFromConfig.
AraHaan Jul 11, 2024
87d7b31
Merge branch 'main' into patch-1
AraHaan Apr 20, 2026
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8 changes: 1 addition & 7 deletions Python/pylifecycle.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1641,18 +1641,12 @@ Py_InitializeFromConfig(const PyConfig *config)
void
Py_InitializeEx(int install_sigs)
{
PyStatus status;

status = _PyRuntime_Initialize();
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@AraHaan AraHaan Apr 20, 2026 •
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Since Py_InitializeFromConfig is called in Py_InitializeEx, this can be deferred to that call & avoids needless code duplication & wasted clock cycles on startup.

if (_PyStatus_EXCEPTION(status)) {
Py_ExitStatusException(status);
}

if (Py_IsInitialized()) {
/* bpo-33932: Calling Py_Initialize() twice does nothing. */
return;
}

PyStatus status;
PyConfig config;
_PyConfig_InitCompatConfig(&config);

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