From 4d19db828ea0ee9d3e08b6e767aa2fe0bb163b18 Mon Sep 17 00:00:00 2001
From: Vince Knight <vincent.knight@gmail.com>
Date: Sat, 11 Mar 2017 20:11:21 +0000
Subject: [PATCH] Remove anti pattern.

---
 axelrod/plot.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/axelrod/plot.py b/axelrod/plot.py
index 134e153bc..c76b9d255 100644
--- a/axelrod/plot.py
+++ b/axelrod/plot.py
@@ -26,9 +26,9 @@
 dataType = List[List[Union[int, float]]]
 
 
-def default_cmap(version: str = "2.0") -> str:
+def default_cmap(version: str = None) -> str:
     """Sets a default matplotlib colormap based on the version."""
-    if LooseVersion(version) >= "1.5":
+    if version is None or LooseVersion(version) >= "1.5":
         return 'viridis'
     return 'YlGnBu'