FIX : logic for IPython hook registration

tacaswell · tacaswell · commit a26831dbf634 · 2015-05-25T00:50:37.000-04:00
Only set the global _IP_REGISTERED if the registration succeeds, with
the finally block it would be set if _both_ failed.
diff --git a/lib/matplotlib/pyplot.py b/lib/matplotlib/pyplot.py
@@ -146,8 +146,8 @@ def displayhook():
         except AttributeError:
             # IPython 1.x
             ip.register_post_execute(displayhook)
-        finally:
-            _IP_REGISTERED = displayhook
+
+        _IP_REGISTERED = displayhook
 
     # import failed or ipython is not running
     except (ImportError, _NotIPython):
