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bpo-35239: _PySys_EndInit() copies module_search_path (GH-10532)

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* The _PySys_EndInit() function now copies the
  config->module_search_path list, so config is longer modified when
  sys.path is updated.
* config->warnoptions list and config->xoptions dict are also copied
* test_embed: InitConfigTests now also tests
  main_config['module_search_path']
* Fix _Py_InitializeMainInterpreter(): don't use config->warnoptions
   but sys.warnoptions to decide if the warnings module should
   be imported at startup.
This commit is contained in:
Victor Stinner 2018-11-16 11:55:35 +01:00 • committed by GitHub
parent b65413b497
commit 37cd982df0
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3 changed files with 28 additions and 13 deletions
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Python/pylifecycle.c
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@ -836,8 +836,8 @@ _Py_InitializeMainInterpreter(PyInterpreterState *interp,
}
/* Initialize warnings. */
if (interp->config.warnoptions != NULL &&
PyList_Size(interp->config.warnoptions) > 0)
PyObject *warnoptions = PySys_GetObject("warnoptions");
if (warnoptions != NULL && PyList_Size(warnoptions) > 0)
{
PyObject *warnings_module = PyImport_ImportModule("warnings");
if (warnings_module == NULL) {