Collecting wkr==1.0.0
  1 location(s) to search for versions of wkr:
  * https://pypi.python.org/simple/wkr/
  Getting page https://pypi.python.org/simple/wkr/
  Analyzing links from page https://pypi.python.org/simple/wkr/
    Found link https://pypi.python.org/packages/6c/43/44000c1d7949d2c6c46fd1f4da0597422e194ade836357f91096351b6599/wkr-1.0.0-py2.py3-none-any.whl#md5=e1b67cd91ecbd8c4ab95b01149606c19 (from https://pypi.python.org/simple/wkr/), version: 1.0.0
    Found link https://pypi.python.org/packages/f1/52/1e33806f7d138b1012392b35ea02f8d6e44e0550de80499258241acabc94/wkr-1.0.0.tar.gz#md5=f40957d7ac2eb3dbb101793a3494b40e (from https://pypi.python.org/simple/wkr/), version: 1.0.0
  Using version 1.0.0 (newest of versions: 1.0.0)
  Downloading wkr-1.0.0-py2.py3-none-any.whl
  Downloading from URL https://pypi.python.org/packages/6c/43/44000c1d7949d2c6c46fd1f4da0597422e194ade836357f91096351b6599/wkr-1.0.0-py2.py3-none-any.whl#md5=e1b67cd91ecbd8c4ab95b01149606c19 (from https://pypi.python.org/simple/wkr/)
  Saved /tmp/tmp9rv9dbs2/wkr-1.0.0-py2.py3-none-any.whl
Skipping wkr, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-build-uwzfxgtv/wkr