httplib2>=0.9.1
googleapis-common-protos
oauth2client>=2.0.1
protobuf!=3.0.0.b2.post1,>=3.0.0b2
six

[grpc]
grpcio>=0.14.0
google-gax>=0.12.1
gax-google-pubsub-v1>=0.7.10
gax-google-logging-v2>=0.7.10