Collecting nbformat==4.4.0
  1 location(s) to search for versions of nbformat:
  * https://pypi.python.org/simple/nbformat/
  Getting page https://pypi.python.org/simple/nbformat/
  Analyzing links from page https://pypi.python.org/simple/nbformat/
    Found link https://pypi.python.org/packages/03/ac/befb692b03d880f9d66b9f09bf3277634480d7acad743511e83b88649085/nbformat-4.0.0-py2.py3-none-any.whl#md5=f40344bd46bda2cc0415a9cfefe77aa0 (from https://pypi.python.org/simple/nbformat/), version: 4.0.0
    Found link https://pypi.python.org/packages/0a/38/5c2b242f2d7b047261c795d960be804abb91866b4e4eee71ba105241eecb/nbformat-4.0.0.zip#md5=d3396bcec6cf626562a91a66595ac7bc (from https://pypi.python.org/simple/nbformat/), version: 4.0.0
    Found link https://pypi.python.org/packages/11/2d/83180bdaa7c8aa1ff2308b928607d66ae907fb7061cbe59dc1e6243b69db/nbformat-4.0.1-py2.py3-none-any.whl#md5=7d85500f000f30476160b69bb2fe9503 (from https://pypi.python.org/simple/nbformat/), version: 4.0.1
    Found link https://pypi.python.org/packages/34/f7/9ab0eb5eea044223c4b05c66ad885b07fb2149e35731d305666ae3254a97/nbformat-4.0.1.tar.gz#md5=684c4dc3c6fd8036fd1ae1c908003e23 (from https://pypi.python.org/simple/nbformat/), version: 4.0.1
    Found link https://pypi.python.org/packages/6e/0e/160754f7ae3e984863f585a3743b0ed1702043a81245907c8fae2d537155/nbformat-4.4.0.tar.gz#md5=2d5f873138d9fbc2a3f9eaaebca3b8a1 (from https://pypi.python.org/simple/nbformat/), version: 4.4.0
    Found link https://pypi.python.org/packages/81/63/5cb425bfa9cff370a740c8d6fd26f17c7db152c1877aca3e7671ecfa8ce3/nbformat-4.2.0.tar.gz#md5=f90f24d317b651226a6b547fa69d8da4 (from https://pypi.python.org/simple/nbformat/), version: 4.2.0
    Found link https://pypi.python.org/packages/c1/3a/34e514c8687daa4c6502ddc0c7a8fdd57a885d59572e74bff584be177cba/nbformat-4.0.0.tar.gz#md5=ce31bb7f34c6a3554dc4a7625fc3033f (from https://pypi.python.org/simple/nbformat/), version: 4.0.0
    Found link https://pypi.python.org/packages/c5/9d/7cc4a5e291ac24cfa5f02612f43c056f62575357fcf381ec70adcc7ebd02/nbformat-4.0.1.zip#md5=3faf3101a28d53933fbdb294c579b17c (from https://pypi.python.org/simple/nbformat/), version: 4.0.1
    Found link https://pypi.python.org/packages/c5/b5/f38ceeeac63e9b4d7d630151be8875beb3d4a86eba5b5ad9d3dbefadadea/nbformat-4.1.0.tar.gz#md5=9d71dd1aa7ce3cc04b191cce151d6645 (from https://pypi.python.org/simple/nbformat/), version: 4.1.0
    Found link https://pypi.python.org/packages/d6/4c/8058f1170dbdbe5a66e9431489f85d2d3e5a8e6314dd7ed1f7b10d864a70/nbformat-4.1.0-py2.py3-none-any.whl#md5=cb50ca80cd6a5862cf7cf013c9f505b1 (from https://pypi.python.org/simple/nbformat/), version: 4.1.0
    Found link https://pypi.python.org/packages/da/27/9a654d2b6cc1eaa517d1c5a4405166c7f6d72f04f6e7eea41855fe808a46/nbformat-4.4.0-py2.py3-none-any.whl#md5=e80d1b25cae72287e3e700f30d6f68cb (from https://pypi.python.org/simple/nbformat/), version: 4.4.0
    Found link https://pypi.python.org/packages/e5/cc/e41bb9357165a2428431873469232d70b161ccc0e0c0e407acc069123f0d/nbformat-4.3.0-py2.py3-none-any.whl#md5=606b74ffcf104089c14482861de138d1 (from https://pypi.python.org/simple/nbformat/), version: 4.3.0
    Found link https://pypi.python.org/packages/f2/fd/f3d5316d3d3c295993cf7d08d0105f2454acef9db363b33b72e3aed0808e/nbformat-4.2.0-py2.py3-none-any.whl#md5=319090fe260774341dc3a3b388fb4263 (from https://pypi.python.org/simple/nbformat/), version: 4.2.0
    Found link https://pypi.python.org/packages/f9/c5/89df4abf906f766727f976e170caa85b4f1c1d1feb1f45d716016e68e19f/nbformat-4.3.0.tar.gz#md5=9a00d20425914cd5ba5f97769d9963ca (from https://pypi.python.org/simple/nbformat/), version: 4.3.0
  Using version 4.4.0 (newest of versions: 4.4.0)
  Downloading nbformat-4.4.0-py2.py3-none-any.whl (155kB)
  Downloading from URL https://pypi.python.org/packages/da/27/9a654d2b6cc1eaa517d1c5a4405166c7f6d72f04f6e7eea41855fe808a46/nbformat-4.4.0-py2.py3-none-any.whl#md5=e80d1b25cae72287e3e700f30d6f68cb (from https://pypi.python.org/simple/nbformat/)
  Saved /tmp/tmpqf32xxo8/nbformat-4.4.0-py2.py3-none-any.whl
Skipping nbformat, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-build-6n9wsb8w/nbformat