From 3ed62e4c3aeb1f52b5b4eda8694116db2b02065e Mon Sep 17 00:00:00 2001
From: ksunden <sunden@wisc.edu>
Date: Thu, 28 Mar 2019 23:26:37 -0500
Subject: [PATCH] BUG: Fix function signature mismatch for set_clim

The dummy parent class introduced in #13234 had a `set_clim` with a
different signature to the version in `ScalarMappable`.
This caused code which called it and passed both arguments to fail,
rather than simply no-op.
---
 lib/matplotlib/colorbar.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/matplotlib/colorbar.py b/lib/matplotlib/colorbar.py
index fba292890b1a..84d4464afffd 100644
--- a/lib/matplotlib/colorbar.py
+++ b/lib/matplotlib/colorbar.py
@@ -331,7 +331,7 @@ def set_cmap(self, cmap):
         pass
 
     @cbook.deprecated("3.1", alternative="ScalarMappable.set_clim")
-    def set_clim(self, cmap):
+    def set_clim(self, vmin=None, vmax=None):
         """
         `.colorbar.Colorbar.set_clim` does nothing; set the limits on
         the mappable associated with this colorbar.