Ticket #9589: autoreload-r9410.patch

django/utils/autoreload.py

@@ -86 +86 @@
 
 def python_reloader(main_func, args, kwargs):
     if os.environ.get("RUN_MAIN") == "true":
-        thread.start_new_thread(main_func, args, kwargs)
+        def watched_main_func():
+            # Files of successfully loaded modules are watched for changes.
+            # However, if loading does not succeed, no module is registered
+            # and so that file isn't watched. Therefore, we add fake module
+            # entries to `sys.modules` to watch all files which possibly
+            # caused the exception so that fixing the problem will cause the
+            # usual reload process.
+            class FakeModule(object):
+                def __init__(self, filename):
+                    self.__file__ = filename
+                    sys.modules[id(self)] = self
+            try:
+                main_func()
+            except StandardError:
+                t, v, tb = sys.exc_info()
+                if t == SyntaxError:
+                    FakeModule(v.filename)
+                else:
+                    while tb:
+                        filename = tb.tb_frame.f_code.co_filename
+                        if filename:
+                            FakeModule(filename)
+                        tb = tb.tb_next
+                raise
+        thread.start_new_thread(watched_main_func, args, kwargs)
         try:
             reloader_thread()
         except KeyboardInterrupt: