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gh-132952: Speed up startup by importing _io instead of io (#132957)

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Jelle Zijlstra 2025-04-28 08:38:56 -07:00 • committed by GitHub
parent 7f16f1bc11
commit 58567cc18c
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11 changed files with 50 additions and 6 deletions
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Python/pylifecycle.c
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@ -2755,7 +2755,7 @@ init_set_builtins_open(void)
goto error;
}
if (!(wrapper = PyImport_ImportModuleAttrString("io", "open"))) {
if (!(wrapper = PyImport_ImportModuleAttrString("_io", "open"))) {
goto error;
}
@ -2800,7 +2800,7 @@ init_sys_streams(PyThreadState *tstate)
}
#endif
if (!(iomod = PyImport_ImportModule("io"))) {
if (!(iomod = PyImport_ImportModule("_io"))) {
goto error;
}