Better scanning for module names, now includes namespace packages and stubs

jedi/debug.py

@@ -108,9 +108,6 @@ def warning(message, *args, **kwargs):
         debug_function('RED', i + 'warning: ' + message)
 
 
-error = warning  # Just for compatibility with logging.
-
-
 def speed(name):
     if debug_function and enable_speed:
         now = time.time()