Collecting tfi==0.4
  1 location(s) to search for versions of tfi:
  * https://pypi.python.org/simple/tfi/
  Getting page https://pypi.python.org/simple/tfi/
  Analyzing links from page https://pypi.python.org/simple/tfi/
    Found link https://pypi.python.org/packages/64/ef/eb268e7f73845e2dbb238b53de2ee54b105150d1da9439520647658771a5/tfi-0.4.tar.gz#md5=47e081d737864595863f2ee6eff67492 (from https://pypi.python.org/simple/tfi/), version: 0.4
    Found link https://pypi.python.org/packages/6f/03/8c273630fee9690c10fb330c7646db31854b44714cdaed298741805f55e6/tfi-0.4-py2.py3-none-any.whl#md5=67558006c23da8047968a3e6ec68d44a (from https://pypi.python.org/simple/tfi/), version: 0.4
  Using version 0.4 (newest of versions: 0.4)
  Downloading tfi-0.4-py2.py3-none-any.whl
  Downloading from URL https://pypi.python.org/packages/6f/03/8c273630fee9690c10fb330c7646db31854b44714cdaed298741805f55e6/tfi-0.4-py2.py3-none-any.whl#md5=67558006c23da8047968a3e6ec68d44a (from https://pypi.python.org/simple/tfi/)
  Saved /tmp/tmpkvil2h4m/tfi-0.4-py2.py3-none-any.whl
Skipping tfi, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-build-t1ujqlpv/tfi