Collecting nx-altair==0.0.1
  1 location(s) to search for versions of nx-altair:
  * https://pypi.python.org/simple/nx-altair/
  Getting page https://pypi.python.org/simple/nx-altair/
  Analyzing links from page https://pypi.org/simple/nx-altair/
    Found link https://files.pythonhosted.org/packages/7e/4e/0213bda9659111ccefe2cba876ba9fa356cc85b3f8a911fde17dcfa01268/nx_altair-0.0.1-py2.py3-none-any.whl#sha256=6dc7fc82a4f20f91afd4aac36ce255f81a613a69edadfcfca72c07e735497cc2 (from https://pypi.org/simple/nx-altair/) (requires-python:>=3.3.0), version: 0.0.1
    Found link https://files.pythonhosted.org/packages/e5/08/1bb6b4e7e9b5262b0d54fb394e7a42a2b8936c1fc4da1216595ccaf33bf4/nx_altair-0.0.1.tar.gz#sha256=a8f7463433f0405ffc97a9932fc164bf55e8f6ecec84796483f5aea1259bbf8a (from https://pypi.org/simple/nx-altair/) (requires-python:>=3.3.0), version: 0.0.1
  Using version 0.0.1 (newest of versions: 0.0.1)
  Downloading https://files.pythonhosted.org/packages/7e/4e/0213bda9659111ccefe2cba876ba9fa356cc85b3f8a911fde17dcfa01268/nx_altair-0.0.1-py2.py3-none-any.whl
  Downloading from URL https://files.pythonhosted.org/packages/7e/4e/0213bda9659111ccefe2cba876ba9fa356cc85b3f8a911fde17dcfa01268/nx_altair-0.0.1-py2.py3-none-any.whl#sha256=6dc7fc82a4f20f91afd4aac36ce255f81a613a69edadfcfca72c07e735497cc2 (from https://pypi.org/simple/nx-altair/) (requires-python:>=3.3.0)
  Saved /tmp/tmpbukd9lej/nx_altair-0.0.1-py2.py3-none-any.whl
Skipping nx-altair, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-build-tj4ofkro/nx-altair