Collecting backports.os==0.1
  1 location(s) to search for versions of backports.os:
  * https://pypi.python.org/simple/backports-os/
  Getting page https://pypi.python.org/simple/backports-os/
  Analyzing links from page https://pypi.python.org/simple/backports-os/
    Skipping link https://pypi.python.org/packages/20/c2/193ff30cab747f205535a3a8c24fcc7647dbaf0aa667b7dd580a740b8de4/backports.os-0.1.1-py2-none-any.whl#md5=3b0fb0e5b3a149e5f81961e8e555f9ed (from https://pypi.python.org/simple/backports-os/); it is not compatible with this Python
    Found link https://pypi.python.org/packages/2b/e0/e7f8afefb8219e6b686722923db073b5bd54e1336b5a8b32da66c2edd0e8/backports.os-0.1.1-py3-none-any.whl#md5=8dd6d55790ac000e22cf7bc7e7b281a8 (from https://pypi.python.org/simple/backports-os/), version: 0.1.1
    Found link https://pypi.python.org/packages/77/b2/ba8f278f08654d98369a81a514cf525c8fda158dd5d0ef45c1a3651a7365/backports.os-0.1rc1-py3-none-any.whl#md5=6a2891abdb7647042694c31c23e32d2e (from https://pypi.python.org/simple/backports-os/), version: 0.1rc1
    Found link https://pypi.python.org/packages/78/16/ffe0a1501ddc9a740b06ef30b63df9c2079c5a8f5358dac07b9053f293ea/backports.os-0.1.1.tar.gz#md5=39286340acee2f2999b6da13c89bdd67 (from https://pypi.python.org/simple/backports-os/), version: 0.1.1
    Skipping link https://pypi.python.org/packages/82/1d/461604fd8b2c6f798a18fb9161019d35c005a489bdd91279dfcf9b65859e/backports.os-0.1rc1-py2-none-any.whl#md5=7677278e0dd1135b7c422495daa72573 (from https://pypi.python.org/simple/backports-os/); it is not compatible with this Python
    Found link https://pypi.python.org/packages/8d/a7/a2aabb9a0cb39aa8dd22cb397acde7f337893389fd79bfbad6e67e31e2ce/backports.os-0.1.tar.gz#md5=47e5a49880005e95f65810c58158eb07 (from https://pypi.python.org/simple/backports-os/), version: 0.1
    Found link https://pypi.python.org/packages/ee/f9/511a2b2638eacc8efeb16752e823235a0e6fec277dbc86f7e56caf1045af/backports.os-0.1-py2.py3-none-any.whl#md5=5e4d38cde4a1b3350107ce31d27eff0f (from https://pypi.python.org/simple/backports-os/), version: 0.1
    Found link https://pypi.python.org/packages/f6/f8/3abc6889736f2d08e1e776325c2bba2baa2bca934a74219d69337bf3bb2a/backports.os-0.1rc1.tar.gz#md5=aafda039fa61c39ab0982ada4497b830 (from https://pypi.python.org/simple/backports-os/), version: 0.1rc1
  Using version 0.1 (newest of versions: 0.1)
  Downloading backports.os-0.1-py2.py3-none-any.whl
  Downloading from URL https://pypi.python.org/packages/ee/f9/511a2b2638eacc8efeb16752e823235a0e6fec277dbc86f7e56caf1045af/backports.os-0.1-py2.py3-none-any.whl#md5=5e4d38cde4a1b3350107ce31d27eff0f (from https://pypi.python.org/simple/backports-os/)
  Saved /tmp/tmpt92pkt_i/backports.os-0.1-py2.py3-none-any.whl
Skipping backports.os, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-build-evonsmxu/backports.os