diff -r 06589e81fd56 Lib/dis.py
--- a/Lib/dis.py	Tue Jul 08 09:41:57 2014 -0500
+++ b/Lib/dis.py	Tue Jul 08 19:06:44 2014 +0200
@@ -41,6 +41,8 @@
         x = x.__func__
     if hasattr(x, '__code__'):  # Function
         x = x.__code__
+    if hasattr(x, 'gi_code'):  # Generator
+        x = x.gi_code
     if hasattr(x, '__dict__'):  # Class or module
         items = sorted(x.__dict__.items())
         for name, x1 in items:
@@ -104,6 +106,8 @@
         x = x.__func__
     if hasattr(x, '__code__'): # Function
         x = x.__code__
+    if hasattr(x, 'gi_code'):  # Generator
+        x = x.gi_code
     if isinstance(x, str):     # Source code
         x = _try_compile(x, "<disassembly>")
     if hasattr(x, 'co_code'):  # Code object