Update requirements to include pytz. (see below)

theengineear · theengineear · commit efcc197f7e3a · 2014-12-15T12:29:49.000-08:00
This is an *extremely* common module. I think 
including it shouldn’t be a problem.
diff --git a/requirements.txt b/requirements.txt
@@ -7,3 +7,9 @@
 
 ## http request dependencies ##
 requests==2.3.0
+
+## python 2 to 3 compatibility ##
+six==1.8.0
+
+## timezone definitions ##
+pytz==2014.9
diff --git a/setup.py b/setup.py
@@ -40,5 +40,5 @@ def readme():
                 'plotly/matplotlylib/mplexporter',
                 'plotly/matplotlylib/mplexporter/renderers'],
       package_data={'plotly': ['graph_reference/*.json']},
-      install_requires=['requests', 'six'],
+      install_requires=['requests', 'six', 'pytz'],
       zip_safe=False)
