Collecting pyconstant==1.0.0
  1 location(s) to search for versions of pyconstant:
  * https://pypi.python.org/simple/pyconstant/
  Getting page https://pypi.python.org/simple/pyconstant/
  Analyzing links from page https://pypi.python.org/simple/pyconstant/
    Found link https://pypi.python.org/packages/71/cb/a1a0b3587ac0c67abfd56c728c6ed00a1d7b7967cd578cb31e08e81f12c2/pyconstant-1.0.0-py2.py3-none-any.whl#md5=9457cf0a1dbc79c18eaa8275081b437d (from https://pypi.python.org/simple/pyconstant/), version: 1.0.0
    Found link https://pypi.python.org/packages/d6/2e/09fb7a34eec2c1755c92f5c45950e4e44d2cadb464b69c79a8d5f962501d/pyconstant-1.0.0.tar.gz#md5=fd5ac30ad7f7410ba4125410a0c2d089 (from https://pypi.python.org/simple/pyconstant/), version: 1.0.0
  Using version 1.0.0 (newest of versions: 1.0.0)
  Downloading pyconstant-1.0.0-py2.py3-none-any.whl
  Downloading from URL https://pypi.python.org/packages/71/cb/a1a0b3587ac0c67abfd56c728c6ed00a1d7b7967cd578cb31e08e81f12c2/pyconstant-1.0.0-py2.py3-none-any.whl#md5=9457cf0a1dbc79c18eaa8275081b437d (from https://pypi.python.org/simple/pyconstant/)
  Saved /tmp/tmp3kuoh07m/pyconstant-1.0.0-py2.py3-none-any.whl
Skipping pyconstant, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-build-w8jpkh1p/pyconstant