[3.1.x] Fixed #31716 -- Fixed detection of console scripts in autoreloader on Windows.

Backport of 8a902b7ee622ada258d15fb122092c1f02b82698 from master

1 files changed, 15 insertions, 1 deletions

diff --git a/django/utils/autoreload.py b/django/utils/autoreload.py
index 845c46c8d4..1ef10a15f9 100644
--- a/django/utils/autoreload.py
+++ b/django/utils/autoreload.py
@@ -207,12 +207,26 @@ def get_child_arguments():
     on reloading.
     """
     import django.__main__
+    django_main_path = Path(django.__main__.__file__)
+    py_script = Path(sys.argv[0])
 
     args = [sys.executable] + ['-W%s' % o for o in sys.warnoptions]
-    if sys.argv[0] == django.__main__.__file__:
+    if py_script == django_main_path:
         # The server was started with `python -m django runserver`.
         args += ['-m', 'django']
         args += sys.argv[1:]
+    elif not py_script.exists():
+        # sys.argv[0] may not exist for several reasons on Windows.
+        # It may exist with a .exe extension or have a -script.py suffix.
+        exe_entrypoint = py_script.with_suffix('.exe')
+        if exe_entrypoint.exists():
+            # Should be executed directly, ignoring sys.executable.
+            return [exe_entrypoint, *sys.argv[1:]]
+        script_entrypoint = py_script.with_name('%s-script.py' % py_script.name)
+        if script_entrypoint.exists():
+            # Should be executed as usual.
+            return [*args, script_entrypoint, *sys.argv[1:]]
+        raise RuntimeError('Script %s does not exist.' % py_script)
     else:
         args += sys.argv
     return args