add requests

Author: tompollard

setup.py

@@ -56,7 +56,8 @@
         'numpy>=1.11.0',
         'matplotlib>=1.5.1',
         'cairocffi>=0.7.2',
-        'configparser>=3.5.0'
+        'configparser>=3.5.0',
+        'requests>=2.10.0'
         ],
 
     # List additional groups of dependencies here (e.g. development