updated dependencies

Author: zakandrewking

py/setup.py

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*-
+from __future__ import print_function, unicode_literals
 
 import sys
 from sys import argv
@@ -59,12 +60,12 @@
         )
     ],
     install_requires=[
-        'Jinja2>=2.7.3',
-        'tornado>=4.0.2',
+        'Jinja2>=2.7.3,<3',
+        'tornado>=4.0.2,<5',
         'pytest>=4.0.1,<5',
-        'cobra>=0.3.0',
-        'jsonschema>=2.4.0',
-        'ipywidgets>=7.0.0,<8',
+        'cobra>=0.5.0',
+        'jsonschema>=2.4.0,<3',
+        'ipywidgets>=7.1.0,<8',
     ],
     extras_require={
         'docs': ['sphinx>=1.2', 'sphinx-rtd-theme>=0.1.6'],