Collecting pynfold==0.1.dev0
  1 location(s) to search for versions of pynfold:
  * https://pypi.python.org/simple/pynfold/
  Getting page https://pypi.python.org/simple/pynfold/
  Analyzing links from page https://pypi.org/simple/pynfold/
    Skipping link https://files.pythonhosted.org/packages/44/b2/d0fb626ada770a9dbebffff73044a4d0e68b73667b20cc46d293915150d7/pynfold-0.1.dev0-py2-none-any.whl#sha256=a5bd331cf81010415ba4f39351846ee2c67610af935cdb06edd713ce2a7a986c (from https://pypi.org/simple/pynfold/); it is not compatible with this Python
    Skipping link https://files.pythonhosted.org/packages/fa/19/e9fcbf00a9b5a6fe2561929095f3219fb50b4587d3658f635d4d048947eb/pynfold-0.1.dev0-py2.7.egg#sha256=94ae64941532075c40fd8cec4ce0712ad6baa7ba7ef4d46e759b0bc7de320c8c (from https://pypi.org/simple/pynfold/); unsupported archive format: .egg
    Found link https://files.pythonhosted.org/packages/e4/4d/ccf788f28b0e663d5b023671217a85a760c598ab4cae0e2d70f090b3b94b/pynfold-0.1.dev0-py2.py3-none-any.whl#sha256=cceb12bfd0a62966c4e6105e6a78664052680686290a26fb0ec1ae0a5c61f53a (from https://pypi.org/simple/pynfold/), version: 0.1.dev0
    Found link https://files.pythonhosted.org/packages/fb/9d/005a79704cebd695745dd22b3ade80fff9f40376d8e4eb3fd73ddc12d568/pynfold-0.1.dev0.tar.gz#sha256=ec9dfae5d69131419a02d9d91c3ef7146e269beb4ca0b32c41c72529039826d9 (from https://pypi.org/simple/pynfold/), version: 0.1.dev0
  Using version 0.1.dev0 (newest of versions: 0.1.dev0)
  Downloading https://files.pythonhosted.org/packages/e4/4d/ccf788f28b0e663d5b023671217a85a760c598ab4cae0e2d70f090b3b94b/pynfold-0.1.dev0-py2.py3-none-any.whl
  Downloading from URL https://files.pythonhosted.org/packages/e4/4d/ccf788f28b0e663d5b023671217a85a760c598ab4cae0e2d70f090b3b94b/pynfold-0.1.dev0-py2.py3-none-any.whl#sha256=cceb12bfd0a62966c4e6105e6a78664052680686290a26fb0ec1ae0a5c61f53a (from https://pypi.org/simple/pynfold/)
  Saved /tmp/tmpax19rb27/pynfold-0.1.dev0-py2.py3-none-any.whl
Skipping pynfold, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-build-li7x0xg6/pynfold