Collecting pntl==0.2.2
  1 location(s) to search for versions of pntl:
  * https://pypi.python.org/simple/pntl/
  Getting page https://pypi.python.org/simple/pntl/
  Analyzing links from page https://pypi.python.org/simple/pntl/
    Skipping link https://pypi.python.org/packages/1e/58/2cb70cf57312fb6aabcc2ef2bc700e952c804e9c3057e4f231e141e53945/pntl-0.2.0-py3.6.egg#md5=571f6c230ed0fa94b99867fda64b7121 (from https://pypi.python.org/simple/pntl/); unsupported archive format: .egg
    Found link https://pypi.python.org/packages/42/68/46ee00eb03dfa4c1b1f79dacec6ebb9766e6c859571bea58e74fe33f82d2/pntl-0.2.2.tar.gz#md5=41bf76a0b38014074d56ead36d962592 (from https://pypi.python.org/simple/pntl/), version: 0.2.2
    Found link https://pypi.python.org/packages/bb/d0/93c63461d6eac3527f7baacf644ca42311578d502352f9df103211c1f4de/pntl-0.2.2-py2.py3-none-any.whl#md5=c0a7eeea97e26f4db24d0105bdee50b9 (from https://pypi.python.org/simple/pntl/), version: 0.2.2
    Found link https://pypi.python.org/packages/db/ad/9bab823d7045f180d46c846eb4a586fbea64160433bba05c82bd73ae40ac/pntl-0.2.1-py2.py3-none-any.whl#md5=49d497ba6fe639f5dc1efdab0c2a1c7c (from https://pypi.python.org/simple/pntl/), version: 0.2.1
  Using version 0.2.2 (newest of versions: 0.2.2)
  Downloading pntl-0.2.2-py2.py3-none-any.whl (2.5MB)
  Downloading from URL https://pypi.python.org/packages/bb/d0/93c63461d6eac3527f7baacf644ca42311578d502352f9df103211c1f4de/pntl-0.2.2-py2.py3-none-any.whl#md5=c0a7eeea97e26f4db24d0105bdee50b9 (from https://pypi.python.org/simple/pntl/)
  Saved /tmp/tmpnk599gzh/pntl-0.2.2-py2.py3-none-any.whl
Skipping pntl, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-build-56yx_xs1/pntl