Collecting xtract==0.1a3
  1 location(s) to search for versions of xtract:
  * https://pypi.python.org/simple/xtract/
  Getting page https://pypi.python.org/simple/xtract/
  Analyzing links from page https://pypi.python.org/simple/xtract/
    Found link https://pypi.python.org/packages/35/75/e5f69665d910be47838cb95bd534f7ca1c47faf47dec147533b94433a13d/xtract-0.1a3.tar.gz#md5=ff7e03eb560f1a36230f3b32f43082e4 (from https://pypi.python.org/simple/xtract/), version: 0.1a3
    Found link https://pypi.python.org/packages/37/74/2d74c59ae912dc9336d87e2ff16fa09c9d2f8b4abdd11c5c9d6770948add/xtract-0.1a3-py2.py3-none-any.whl#md5=1dcb91afe513d7e15a7f9c05d928fe1d (from https://pypi.python.org/simple/xtract/), version: 0.1a3
  Using version 0.1a3 (newest of versions: 0.1a3)
  Downloading xtract-0.1a3-py2.py3-none-any.whl
  Downloading from URL https://pypi.python.org/packages/37/74/2d74c59ae912dc9336d87e2ff16fa09c9d2f8b4abdd11c5c9d6770948add/xtract-0.1a3-py2.py3-none-any.whl#md5=1dcb91afe513d7e15a7f9c05d928fe1d (from https://pypi.python.org/simple/xtract/)
  Saved /tmp/tmpd3sgdgu9/xtract-0.1a3-py2.py3-none-any.whl
Skipping xtract, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-build-xucd_qte/xtract