Created temporary directory: /tmp/pip-ephem-wheel-cache-vi9tng5a
Created temporary directory: /tmp/pip-req-tracker-j3jzas3f
Created requirements tracker '/tmp/pip-req-tracker-j3jzas3f'
Created temporary directory: /tmp/pip-wheel-aenxbn61
Collecting libvis==0.1.0
  1 location(s) to search for versions of libvis:
  * https://pypi.org/simple/libvis/
  Getting page https://pypi.org/simple/libvis/
  Analyzing links from page https://pypi.org/simple/libvis/
    Found link https://files.pythonhosted.org/packages/7f/33/c824de8241c563c51c259dd677b4ef5a565ed296e2c6c15ff6236fa0f86f/libvis-0.0.9.tar.gz#sha256=0be8828b6c1bdba3d2d682534cca072811a5f6adacf73e8d3eb6ee9a5cbdadb7 (from https://pypi.org/simple/libvis/) (requires-python:>=3.3), version: 0.0.9
    Found link https://files.pythonhosted.org/packages/a5/e3/2bcde5011a34a5d9251760e07d31ac56dc5f5e0a253720390d502f2aed82/libvis-0.0.10.tar.gz#sha256=edbbac264aff1da4aeffb2cf7bbfae771d240bd918c7fe1f44f81a9a00eede3a (from https://pypi.org/simple/libvis/) (requires-python:>=3.3), version: 0.0.10
    Found link https://files.pythonhosted.org/packages/73/5f/4d99ed031af4234741561a67dc2e4cbc78fa2f6adc34938c0f778fee02a1/libvis-0.1.0-py3-none-any.whl#sha256=de20f49cb52f96fa4116a5154068691ef733a325823fbe52c7795a6ff92446ac (from https://pypi.org/simple/libvis/) (requires-python:>=3.3), version: 0.1.0
    Found link https://files.pythonhosted.org/packages/96/b8/88a3e108fc52226a03141d0b9ab8d3f85a2504f7c62a5a970118aa95b4b1/libvis-0.1.0.tar.gz#sha256=580261054b28fe6aaa1b7cd409a4269d4eac31628fecfe53c773ba5ddd481e91 (from https://pypi.org/simple/libvis/) (requires-python:>=3.3), version: 0.1.0
  Using version 0.1.0 (newest of versions: 0.1.0)
  Created temporary directory: /tmp/pip-unpack-c9lrwa4c
  Downloading https://files.pythonhosted.org/packages/73/5f/4d99ed031af4234741561a67dc2e4cbc78fa2f6adc34938c0f778fee02a1/libvis-0.1.0-py3-none-any.whl
  Downloading from URL https://files.pythonhosted.org/packages/73/5f/4d99ed031af4234741561a67dc2e4cbc78fa2f6adc34938c0f778fee02a1/libvis-0.1.0-py3-none-any.whl#sha256=de20f49cb52f96fa4116a5154068691ef733a325823fbe52c7795a6ff92446ac (from https://pypi.org/simple/libvis/) (requires-python:>=3.3)
  Saved /tmp/tmpp6k37xdf/libvis-0.1.0-py3-none-any.whl
  Added libvis==0.1.0 from https://files.pythonhosted.org/packages/73/5f/4d99ed031af4234741561a67dc2e4cbc78fa2f6adc34938c0f778fee02a1/libvis-0.1.0-py3-none-any.whl#sha256=de20f49cb52f96fa4116a5154068691ef733a325823fbe52c7795a6ff92446ac to build tracker '/tmp/pip-req-tracker-j3jzas3f'
  Removed libvis==0.1.0 from https://files.pythonhosted.org/packages/73/5f/4d99ed031af4234741561a67dc2e4cbc78fa2f6adc34938c0f778fee02a1/libvis-0.1.0-py3-none-any.whl#sha256=de20f49cb52f96fa4116a5154068691ef733a325823fbe52c7795a6ff92446ac from build tracker '/tmp/pip-req-tracker-j3jzas3f'
Skipping libvis, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-aenxbn61/libvis
Removed build tracker '/tmp/pip-req-tracker-j3jzas3f'