Collecting varlink==19
  1 location(s) to search for versions of varlink:
  * https://pypi.python.org/simple/varlink/
  Getting page https://pypi.python.org/simple/varlink/
  Analyzing links from page https://pypi.org/simple/varlink/
    Found link https://files.pythonhosted.org/packages/cb/5b/b4ac743e5d6fb410f08294ef57703f8b186b8f61e3d6c61539ccb41eaebd/varlink-19-py2.py3-none-any.whl#sha256=4281deb3760bff7a5210d2e7416f6d00cf69ea87a0e4fbfd8980882746bf489b (from https://pypi.org/simple/varlink/) (requires-python:>=3.5), version: 19
    Found link https://files.pythonhosted.org/packages/55/eb/8af046473672a5d9710d4cb76b883f0ccc5a1ff527a504f9101ee33186a1/varlink-19.tar.gz#sha256=82b6bd17c5f336caccd7019a4c8ee35268e54707bd43fe93882d77b975bb6e46 (from https://pypi.org/simple/varlink/) (requires-python:>=3.5), version: 19
  Using version 19 (newest of versions: 19)
  Downloading https://files.pythonhosted.org/packages/cb/5b/b4ac743e5d6fb410f08294ef57703f8b186b8f61e3d6c61539ccb41eaebd/varlink-19-py2.py3-none-any.whl
  Downloading from URL https://files.pythonhosted.org/packages/cb/5b/b4ac743e5d6fb410f08294ef57703f8b186b8f61e3d6c61539ccb41eaebd/varlink-19-py2.py3-none-any.whl#sha256=4281deb3760bff7a5210d2e7416f6d00cf69ea87a0e4fbfd8980882746bf489b (from https://pypi.org/simple/varlink/) (requires-python:>=3.5)
  Saved /tmp/tmp56a8cfwa/varlink-19-py2.py3-none-any.whl
Skipping varlink, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-build-vh0wgw3e/varlink