From a3b517a7d70d86c26e5986c7073a23cf0c1e2e65 2017-12-14 11:53:54
From: Thomas Kluyver <takowl@gmail.com>
Date: 2017-12-14 11:53:54
Subject: [PATCH] Merge pull request #10945 from ipython/auto-backport-of-pr-10944

Backport PR #10944 on branch 5.x
---

diff --git a/IPython/extensions/autoreload.py b/IPython/extensions/autoreload.py
index 2d0894f..d3e4205 100644
--- a/IPython/extensions/autoreload.py
+++ b/IPython/extensions/autoreload.py
@@ -186,7 +186,7 @@ class ModuleReloader(object):
         if not hasattr(module, '__file__') or module.__file__ is None:
             return None, None
 
-        if getattr(module, '__name__', None) in ['__mp_main__', '__main__']:
+        if getattr(module, '__name__', None) in [None, '__mp_main__', '__main__']:
             # we cannot reload(__main__) or reload(__mp_main__)
             return None, None