Collecting unflatten==0.1b1
  1 location(s) to search for versions of unflatten:
  * https://pypi.python.org/simple/unflatten/
  Getting page https://pypi.python.org/simple/unflatten/
  Analyzing links from page https://pypi.org/simple/unflatten/
    Found link https://files.pythonhosted.org/packages/0d/e5/96abd4b6af62e8b12563368d310c04131cfacabdd19e17214a261e60755c/unflatten-0.1b1-py2.py3-none-any.whl#sha256=d04508afc6c79d248de5538662811b3ebfd0228f6843d91f6fd2f11a6d6cab4d (from https://pypi.org/simple/unflatten/), version: 0.1b1
    Found link https://files.pythonhosted.org/packages/61/43/7ef28b02f4ace42daa74285f3ee6eb3846c876af016b83cdb3cb4974fc2e/unflatten-0.1b1.tar.gz#sha256=51e6f57cc5bc41c3202592d2e36aecbf155452440d4a1235186908d6181c7b0b (from https://pypi.org/simple/unflatten/), version: 0.1b1
    Found link https://files.pythonhosted.org/packages/d2/64/267a65ec55a292e37eadd30f67343511096a13aa9d27c5beb0f03ff1230d/unflatten-0.1-py2.py3-none-any.whl#sha256=5ace25f23d07dc6f56fdd4e0d033cdea56d97e0158781aef5f003969ed71aa1f (from https://pypi.org/simple/unflatten/), version: 0.1
    Found link https://files.pythonhosted.org/packages/0c/3a/4bb8bb8c46bff5b301903d84ebb3d92a4c542363de7c04dc09957137a0a6/unflatten-0.1.tar.gz#sha256=3a44a1baf20a299a2c75a9a1761fcdbff1b40d3b6145a71f3432188c7f05afa3 (from https://pypi.org/simple/unflatten/), version: 0.1
  Using version 0.1b1 (newest of versions: 0.1b1)
  Downloading https://files.pythonhosted.org/packages/0d/e5/96abd4b6af62e8b12563368d310c04131cfacabdd19e17214a261e60755c/unflatten-0.1b1-py2.py3-none-any.whl
  Downloading from URL https://files.pythonhosted.org/packages/0d/e5/96abd4b6af62e8b12563368d310c04131cfacabdd19e17214a261e60755c/unflatten-0.1b1-py2.py3-none-any.whl#sha256=d04508afc6c79d248de5538662811b3ebfd0228f6843d91f6fd2f11a6d6cab4d (from https://pypi.org/simple/unflatten/)
  Saved /tmp/tmpjpz8upz_/unflatten-0.1b1-py2.py3-none-any.whl
Skipping unflatten, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-build-7e172yql/unflatten