commit f63e343c39902e05a947320bb843a95e5b3d4535
author Benjamin Peterson <benjamin@python.org> Tue Jul 29 15:53:12 2008 +0000
committer Benjamin Peterson <benjamin@python.org> Tue Jul 29 15:53:12 2008 +0000
tree e000553b196ef276705a7f237837a5b3701beb16
parent 638c722228940d62662f2337ed4c47c30afed37a

uhh. __builtins__ is a module in __main__ and a dict elsewhere

Lib/doctest.py

diff --git a/Lib/doctest.py b/Lib/doctest.py
index 64a0375..e2b595e 100644
--- a/Lib/doctest.py
+++ b/Lib/doctest.py
@@ -1360,7 +1360,10 @@
             linecache.getlines = self.save_linecache_getlines
             if clear_globs:
                 test.globs.clear()
-                __builtins__['_'] = None
+                if __name__ == "__main__":
+                    __builtins__._ = None
+                else:
+                    __builtins__['_'] = None
 
     #/////////////////////////////////////////////////////////////////
     # Summarization