Collecting yamlenc==0.5
  1 location(s) to search for versions of yamlenc:
  * https://pypi.python.org/simple/yamlenc/
  Getting page https://pypi.python.org/simple/yamlenc/
  Analyzing links from page https://pypi.python.org/simple/yamlenc/
    Found link https://pypi.python.org/packages/2d/cf/26f49e1d327721f7c2387fa96fa68728ce4d79b7dcc3f017ef3cf1c9deb2/yamlenc-0.5-py2.py3-none-any.whl#md5=be5e87cb604a50914828e5c2e390caf0 (from https://pypi.python.org/simple/yamlenc/), version: 0.5
    Found link https://pypi.python.org/packages/67/b2/0a683b193ddbc390b6306c5e112f49e4d3659851a2691edf49b301867e4d/yamlenc-0.5.tar.gz#md5=321bce1d4a05d82b4cb571f8e9aad0fb (from https://pypi.python.org/simple/yamlenc/), version: 0.5
  Using version 0.5 (newest of versions: 0.5)
  Downloading yamlenc-0.5-py2.py3-none-any.whl
  Downloading from URL https://pypi.python.org/packages/2d/cf/26f49e1d327721f7c2387fa96fa68728ce4d79b7dcc3f017ef3cf1c9deb2/yamlenc-0.5-py2.py3-none-any.whl#md5=be5e87cb604a50914828e5c2e390caf0 (from https://pypi.python.org/simple/yamlenc/)
  Saved /tmp/tmpdn50j3zh/yamlenc-0.5-py2.py3-none-any.whl
Skipping yamlenc, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-build-w3boifym/yamlenc