Avoid triggering a DeprecationWarning.

anntzer · anntzer · commit 7a727a1eda70 · 2018-05-06T14:09:13.000-07:00
diff --git a/lib/matplotlib/backends/backend_cairo.py b/lib/matplotlib/backends/backend_cairo.py
@@ -307,6 +307,8 @@ def _draw_paths():
             # We actually need to call the setters to reset the internal state.
             vars(gc).update(gc_vars)
             for k, v in gc_vars.items():
+                if k == "_linestyle":  # Deprecated, no effect.
+                    continue
                 try:
                     getattr(gc, "set" + k)(v)
                 except (AttributeError, TypeError) as e:
