PyYAML
wrapt
six>=1.5
yarl

[:python_version in "2.4, 2.5, 2.6"]
contextlib2
backport_collections
mock

[:python_version in "2.7, 3.1, 3.2"]
contextlib2
mock

[:python_version in "3.4, 3.5, 3.6"]
yarl
