added schedule to the packages for cacheing

requirements.txt

@@ -10,8 +10,11 @@ itsdangerous==0.24
 Jinja2==2.10
 lxml==4.1.1
 MarkupSafe==1.0
+pycodestyle==2.4.0
 python-dateutil==2.6.1
+redis==2.10.6
 requests==2.18.4
+schedule==0.5.0
 six==1.11.0
 urllib3==1.22
 Werkzeug==0.14.1