Fix FigureManager to allow pyplot to work for non GUI backends

OceanWolf · OceanWolf · commit 24e43b374bdf · 2016-08-04T02:03:34.000+02:00
diff --git a/lib/matplotlib/backend_managers.py b/lib/matplotlib/backend_managers.py
@@ -82,6 +82,7 @@ def __init__(self, figure, num, **kwargs):
 
         self._is_gui = hasattr(self._backend, 'Window')
         if not self._is_gui:
+            self.window = None
             return
 
         self._mainloop = self._backend.MainLoop()
@@ -185,7 +186,8 @@ def set_window_title(self, title):
         Set the title text of the window containing the figure.  Note that
         this has no effect for non-GUI backends (e.g., a PS backend).
         """
-        self.window.set_window_title(title)
+        if self.window:
+            self.window.set_window_title(title)
 
     @property
     def backend(self):
