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bpo-42260: Initialize time and warnings earlier at startup (GH-23249)

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* Call _PyTime_Init() and _PyWarnings_InitState() earlier during the
  Python initialization.
* Inline _PyImportHooks_Init() into _PySys_InitCore().
* The _warnings initialization function no longer call
  _PyWarnings_InitState() to prevent resetting filters_version to 0.
* _PyWarnings_InitState() now returns an int and no longer clear the
  state in case of error (it's done anyway at Python exit).
* Rework init_importlib(), fix refleaks on errors.
This commit is contained in:
Victor Stinner 2020-11-12 15:14:13 +01:00 • committed by GitHub
parent d19fa7a337
commit ef75a625cd
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GPG key ID: 4AEE18F83AFDEB23
7 changed files with 68 additions and 133 deletions
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37
Python/import.c
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@ -51,43 +51,6 @@ module _imp
/* Initialize things */
PyStatus
_PyImportHooks_Init(PyThreadState *tstate)
{
PyObject *v, *path_hooks = NULL;
int err = 0;
/* adding sys.path_hooks and sys.path_importer_cache */
v = PyList_New(0);
if (v == NULL)
goto error;
err = PySys_SetObject("meta_path", v);
Py_DECREF(v);
if (err)
goto error;
v = PyDict_New();
if (v == NULL)
goto error;
err = PySys_SetObject("path_importer_cache", v);
Py_DECREF(v);
if (err)
goto error;
path_hooks = PyList_New(0);
if (path_hooks == NULL)
goto error;
err = PySys_SetObject("path_hooks", path_hooks);
if (err) {
goto error;
}
Py_DECREF(path_hooks);
return _PyStatus_OK();
error:
_PyErr_Print(tstate);
return _PyStatus_ERR("initializing sys.meta_path, sys.path_hooks, "
"or path_importer_cache failed");
}
PyStatus
_PyImportZip_Init(PyThreadState *tstate)
{