Fix initialization of the faulthandler module

faulthandler requires the importlib if "-X faulthandler" option is present on
the command line, so initialize faulthandler after importlib.

Add also an unit test.

1 files changed, 4 insertions, 4 deletions

diff --git a/Python/pythonrun.c b/Python/pythonrun.c
index 6ee9a5fddf..cafc09ac3f 100644
--- a/Python/pythonrun.c
+++ b/Python/pythonrun.c
@@ -356,10 +356,6 @@ _Py_InitializeEx_Private(int install_sigs, int install_importlib)
 
     _PyImportHooks_Init();
 
-    /* initialize the faulthandler module */
-    if (_PyFaulthandler_Init())
-        Py_FatalError("Py_Initialize: can't initialize faulthandler");
-
     /* Initialize _warnings. */
     _PyWarnings_Init();
 
@@ -368,6 +364,10 @@ _Py_InitializeEx_Private(int install_sigs, int install_importlib)
 
     import_init(interp, sysmod);
 
+    /* initialize the faulthandler module */
+    if (_PyFaulthandler_Init())
+        Py_FatalError("Py_Initialize: can't initialize faulthandler");
+
     _PyTime_Init();
 
     if (initfsencoding(interp) < 0)