From 905e56ae2350d3508349e9f610049905563865e2 Mon Sep 17 00:00:00 2001
From: Tim Hoffmann <2836374+timhoffm@users.noreply.github.com>
Date: Thu, 15 Nov 2018 05:07:01 +0100
Subject: [PATCH] Backport PR #12809: Fix TypeError when calculating
 tick_values

---
 lib/matplotlib/ticker.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/matplotlib/ticker.py b/lib/matplotlib/ticker.py
index 93dc6c885917..bc4a7b6b95d7 100644
--- a/lib/matplotlib/ticker.py
+++ b/lib/matplotlib/ticker.py
@@ -2155,7 +2155,7 @@ def tick_values(self, vmin, vmax):
                 stride += 1
 
         # Does subs include anything other than 1?
-        have_subs = len(subs) > 1 or (len(subs == 1) and subs[0] != 1.0)
+        have_subs = len(subs) > 1 or (len(subs) == 1 and subs[0] != 1.0)
 
         decades = np.arange(math.floor(vmin) - stride,
                             math.ceil(vmax) + 2 * stride, stride)