Collecting pystun3==1.0.0
  1 location(s) to search for versions of pystun3:
  * https://pypi.python.org/simple/pystun3/
  Getting page https://pypi.python.org/simple/pystun3/
  Analyzing links from page https://pypi.org/simple/pystun3/
    Skipping link https://files.pythonhosted.org/packages/31/55/467df0b254d10f4b542bad221ed42f08d276b3cfacb18ea071698689dbd2/pystun3-1.0.0-py2-none-any.whl#sha256=df9c4c4a5b27f520472c6a7547ca24ac39148b0fc5f6f500275161258e250019 (from https://pypi.org/simple/pystun3/); it is not compatible with this Python
    Found link https://files.pythonhosted.org/packages/42/07/444fa5552f471d4ff69ba36c030fc91880a0fb856ed29a146ea5f5ecd208/pystun3-1.0.0-py3-none-any.whl#sha256=f080e739880cda781fa588a945b4d5bed0858e2ceab40143a08973ec674f9e72 (from https://pypi.org/simple/pystun3/), version: 1.0.0
    Found link https://files.pythonhosted.org/packages/a4/97/d3d5657eaaa9fa3dc3c2546b775d0758fcd448891299e5773619f75be820/pystun3-1.0.0.tar.gz#sha256=abafa1d957741df4bcc4cd2298a423db5831fec2600a62719210ea115dddc8f9 (from https://pypi.org/simple/pystun3/), version: 1.0.0
  Using version 1.0.0 (newest of versions: 1.0.0)
  Downloading https://files.pythonhosted.org/packages/42/07/444fa5552f471d4ff69ba36c030fc91880a0fb856ed29a146ea5f5ecd208/pystun3-1.0.0-py3-none-any.whl
  Downloading from URL https://files.pythonhosted.org/packages/42/07/444fa5552f471d4ff69ba36c030fc91880a0fb856ed29a146ea5f5ecd208/pystun3-1.0.0-py3-none-any.whl#sha256=f080e739880cda781fa588a945b4d5bed0858e2ceab40143a08973ec674f9e72 (from https://pypi.org/simple/pystun3/)
  Saved /tmp/tmpa88n4i70/pystun3-1.0.0-py3-none-any.whl
Skipping pystun3, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-build-h7nwxa8j/pystun3