Deprecate Spine.is_frame_like.

anntzer · anntzer · commit 9536fe9a8373 · 2019-02-08T19:25:37.000+01:00
It has never been used since its addition in the "smart bounds" commit in 2009 (a5761e8) and the implementation just seems overly complex (the `position == "center"` / `position == "zero"` checks have effectively no effect on the return value). If someone complains with a use case, we can always revisit...
diff --git a/doc/api/next_api_changes/2019-02-08-AL.rst b/doc/api/next_api_changes/2019-02-08-AL.rst
@@ -0,0 +1,5 @@
+Deprecations
+````````````
+
+``Spine.is_frame_like`` is deprecated.  It has never been used in the codebase
+since its addition in 2009.
diff --git a/lib/matplotlib/spines.py b/lib/matplotlib/spines.py
@@ -177,6 +177,7 @@ def cla(self):
         if self.axis is not None:
             self.axis.cla()
 
+    @cbook.deprecated("3.1")
     def is_frame_like(self):
         """return True if directly on axes frame
 
