Fix python 3 compatibility

ObviouslyGreen · ObviouslyGreen · commit 4df988b5b7f1 · 2015-10-07T07:31:34.000-05:00
Python 3 doesn't allow addition of dict_items and list, but union works.
diff --git a/bpython/cli.py b/bpython/cli.py
@@ -281,7 +281,7 @@ def make_colors(config):
     }
 
     if platform.system() == 'Windows':
-        c = dict(c.items() +
+        c = dict(c.items() |
             [
             ('K', 8),
             ('R', 9),
