Collecting bullet-train==1.0.0
  1 location(s) to search for versions of bullet-train:
  * https://pypi.python.org/simple/bullet-train/
  Getting page https://pypi.python.org/simple/bullet-train/
  Analyzing links from page https://pypi.org/simple/bullet-train/
    Found link https://files.pythonhosted.org/packages/4b/d9/263c858a3350826aad9dcea2cf8ec0934120c494ed61688e14cf6f8f3905/bullet-train-1.0.0.tar.gz#sha256=0408328ea1321de3f96b817163fd3b8f6e62962e6256dcf229a1deb324d2bd10 (from https://pypi.org/simple/bullet-train/), version: 1.0.0
    Skipping link https://files.pythonhosted.org/packages/9a/ea/9af4e03273e71ed25ff41879813726cd819c36d1c65c4c8ba33b7881a654/bullet_train-1.0.0-py2-none-any.whl#sha256=e0a6106f53afadbbf4f04d8cf6424be7e791c783d76e6be626e61061e8d3bf16 (from https://pypi.org/simple/bullet-train/); it is not compatible with this Python
    Found link https://files.pythonhosted.org/packages/4d/31/9258abe8fc1d91f6f51f60c1addd64ac657fe9c4d86405436d5fb1fa0456/bullet_train-1.0.0-py3-none-any.whl#sha256=38e99340d3467392c1d367a86aee2f0b3d7d9b5e3252db54357a217e283b262d (from https://pypi.org/simple/bullet-train/), version: 1.0.0
  Using version 1.0.0 (newest of versions: 1.0.0)
  Downloading https://files.pythonhosted.org/packages/4d/31/9258abe8fc1d91f6f51f60c1addd64ac657fe9c4d86405436d5fb1fa0456/bullet_train-1.0.0-py3-none-any.whl
  Downloading from URL https://files.pythonhosted.org/packages/4d/31/9258abe8fc1d91f6f51f60c1addd64ac657fe9c4d86405436d5fb1fa0456/bullet_train-1.0.0-py3-none-any.whl#sha256=38e99340d3467392c1d367a86aee2f0b3d7d9b5e3252db54357a217e283b262d (from https://pypi.org/simple/bullet-train/)
  Saved /tmp/tmphg_anbm4/bullet_train-1.0.0-py3-none-any.whl
Skipping bullet-train, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-build-xw3lgv17/bullet-train