cleanup if/else for headers

BRONSOLO · BRONSOLO · commit 9d249b29fb98 · 2015-06-30T14:03:05.000-04:00
diff --git a/plotly/plotly/plotly.py b/plotly/plotly/plotly.py
@@ -1211,6 +1211,8 @@ def headers(cls):
                 proxy_username, proxy_password))).decode('utf8')
             headers['authorization'] = 'Basic ' + encoded_proxy_auth
             headers['plotly-authorization'] = 'Basic ' + encoded_api_auth
+        else:
+            headers['authorization'] = 'Basic ' + encoded_api_auth,
 
         return headers
 
