Created temporary directory: /tmp/pip-ephem-wheel-cache-5fdc3x90
Created temporary directory: /tmp/pip-req-tracker-xe0em1os
Created requirements tracker '/tmp/pip-req-tracker-xe0em1os'
Created temporary directory: /tmp/pip-wheel-9r_ph4ga
Collecting pretextbook==0.0rc1
  1 location(s) to search for versions of pretextbook:
  * https://pypi.org/simple/pretextbook/
  Getting page https://pypi.org/simple/pretextbook/
  Analyzing links from page https://pypi.org/simple/pretextbook/
    Found link https://files.pythonhosted.org/packages/4f/40/4989f4ed0f36bf6b23edfa2c53c5b92c6adb3838f06468f237176ed9d489/pretextbook-0.0rc0-py3-none-any.whl#sha256=5225efadfc5037c1e09b71677c8b9363b1100d487540040206b289690df0338b (from https://pypi.org/simple/pretextbook/) (requires-python:>=3.4), version: 0.0rc0
    Found link https://files.pythonhosted.org/packages/cb/6f/9438e439082fdb8fc3185ac826a45fa16d591bdb17bc4db53a9fbc2b9c68/pretextbook-0.0rc0.tar.gz#sha256=bab1c21c71e8024d01d7b6c7a4493e738b26ff24d2ba0e520a7fd228fb729bab (from https://pypi.org/simple/pretextbook/) (requires-python:>=3.4), version: 0.0rc0
    Found link https://files.pythonhosted.org/packages/44/93/2732de29266d6fcd6ca46a5557e48826fd3903b16a1177c7387284b7fb85/pretextbook-0.0rc1-py3-none-any.whl#sha256=a05ba845461047ec83bcc6e9c5b5fdc9a9cd6f8389c45359cf2a481f3f673a21 (from https://pypi.org/simple/pretextbook/) (requires-python:>=3.4), version: 0.0rc1
    Found link https://files.pythonhosted.org/packages/99/b2/750b43f356b08ce6a60b074d7282ec01e396232ee7b4303947044dc46df9/pretextbook-0.0rc1.tar.gz#sha256=ccdb7ad9620e17de4cf26d148e074a840ce1194976553eaab9b78fbd340b2a81 (from https://pypi.org/simple/pretextbook/) (requires-python:>=3.4), version: 0.0rc1
  Using version 0.0rc1 (newest of versions: 0.0rc1)
  Created temporary directory: /tmp/pip-unpack-jnqn1wyr
  Downloading https://files.pythonhosted.org/packages/44/93/2732de29266d6fcd6ca46a5557e48826fd3903b16a1177c7387284b7fb85/pretextbook-0.0rc1-py3-none-any.whl (561kB)
  Downloading from URL https://files.pythonhosted.org/packages/44/93/2732de29266d6fcd6ca46a5557e48826fd3903b16a1177c7387284b7fb85/pretextbook-0.0rc1-py3-none-any.whl#sha256=a05ba845461047ec83bcc6e9c5b5fdc9a9cd6f8389c45359cf2a481f3f673a21 (from https://pypi.org/simple/pretextbook/) (requires-python:>=3.4)
  Saved /tmp/tmp0ilg2p44/pretextbook-0.0rc1-py3-none-any.whl
  Added pretextbook==0.0rc1 from https://files.pythonhosted.org/packages/44/93/2732de29266d6fcd6ca46a5557e48826fd3903b16a1177c7387284b7fb85/pretextbook-0.0rc1-py3-none-any.whl#sha256=a05ba845461047ec83bcc6e9c5b5fdc9a9cd6f8389c45359cf2a481f3f673a21 to build tracker '/tmp/pip-req-tracker-xe0em1os'
  Removed pretextbook==0.0rc1 from https://files.pythonhosted.org/packages/44/93/2732de29266d6fcd6ca46a5557e48826fd3903b16a1177c7387284b7fb85/pretextbook-0.0rc1-py3-none-any.whl#sha256=a05ba845461047ec83bcc6e9c5b5fdc9a9cd6f8389c45359cf2a481f3f673a21 from build tracker '/tmp/pip-req-tracker-xe0em1os'
Skipping pretextbook, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-wheel-9r_ph4ga/pretextbook
Removed build tracker '/tmp/pip-req-tracker-xe0em1os'