requests <3.0.0, >=2.2.0
autobahn <0.8.0, >=0.7.4
six <1.6.0, >=1.5.2
twisted <14.0.0, >=13.0.0
pyopenssl <0.14.0, >=0.13.1
python-dateutil <2.3, >=2.1