Collecting intreehooks==1.0
  1 location(s) to search for versions of intreehooks:
  * https://pypi.python.org/simple/intreehooks/
  Getting page https://pypi.python.org/simple/intreehooks/
  Analyzing links from page https://pypi.python.org/simple/intreehooks/
    Found link https://pypi.python.org/packages/72/5d/b6e188060e2a73b1d6eec7378ad18887c288a59a8cda1f5e2091519c91d9/intreehooks-1.0-py2.py3-none-any.whl#md5=5747b68ee097bd3ee43b03c182599719 (from https://pypi.python.org/simple/intreehooks/), version: 1.0
    Found link https://pypi.python.org/packages/f9/a5/5dacebf93232a847970921af2b020f9f2a8e0064e3a97727cd38efc77ba0/intreehooks-1.0.tar.gz#md5=5b95c8cab2cfcbf3385c87216878e3cd (from https://pypi.python.org/simple/intreehooks/), version: 1.0
  Using version 1.0 (newest of versions: 1.0)
  Downloading intreehooks-1.0-py2.py3-none-any.whl
  Downloading from URL https://pypi.python.org/packages/72/5d/b6e188060e2a73b1d6eec7378ad18887c288a59a8cda1f5e2091519c91d9/intreehooks-1.0-py2.py3-none-any.whl#md5=5747b68ee097bd3ee43b03c182599719 (from https://pypi.python.org/simple/intreehooks/)
  Saved /tmp/tmp43v5hwks/intreehooks-1.0-py2.py3-none-any.whl
Skipping intreehooks, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-build-90ifooo0/intreehooks