BUG : instantiate fall-back writer

tacaswell · tacaswell · commit b8f2e7cbd8f2 · 2014-01-28T21:51:05.000-05:00
fixes #2651 If the a string is passed into save as `writer` the code tries to look up a writer with that name and create it. If a writer with that name is not in the registry, it is replaced with the name of the first writer that _is_ in the registry, but not an instance of that type.
diff --git a/lib/matplotlib/animation.py b/lib/matplotlib/animation.py
@@ -702,7 +702,9 @@ def save(self, filename, writer=None, fps=None, dpi=None, codec=None,
                 warnings.warn("MovieWriter %s unavailable" % writer)
 
                 try:
-                    writer = writers.list()[0]
+                    writer = writers[writers.list()[0]](fps, codec, bitrate,
+                                                        extra_args=extra_args,
+                                                        metadata=metadata)
                 except IndexError:
                     raise ValueError("Cannot save animation: no writers are "
                                      "available. Please install mencoder or "
