Collecting cofr==1.0.0b2
  1 location(s) to search for versions of cofr:
  * https://pypi.python.org/simple/cofr/
  Getting page https://pypi.python.org/simple/cofr/
  Analyzing links from page https://pypi.python.org/simple/cofr/
    Found link https://pypi.python.org/packages/87/fa/f36d5d9e7059ba3a7a679397855918e759390be837a8fab08879bce70284/cofr-1.0.0b2.tar.gz#md5=747ca1440b2e7e7862427a3df7ee16f1 (from https://pypi.python.org/simple/cofr/) (requires-python:>=3.5), version: 1.0.0b2
    Found link https://pypi.python.org/packages/de/8e/39068c5ebfc897b2f064712f2225e1f864ee98c94bcf2ae8bb27b95480db/cofr-1.0.0b2-py2.py3-none-any.whl#md5=0a7afb488db3ef2dcd8d3b8bbfa32e6a (from https://pypi.python.org/simple/cofr/) (requires-python:>=3.5), version: 1.0.0b2
  Using version 1.0.0b2 (newest of versions: 1.0.0b2)
  Downloading cofr-1.0.0b2-py2.py3-none-any.whl
  Downloading from URL https://pypi.python.org/packages/de/8e/39068c5ebfc897b2f064712f2225e1f864ee98c94bcf2ae8bb27b95480db/cofr-1.0.0b2-py2.py3-none-any.whl#md5=0a7afb488db3ef2dcd8d3b8bbfa32e6a (from https://pypi.python.org/simple/cofr/) (requires-python:>=3.5)
  Saved /tmp/tmpsa3curem/cofr-1.0.0b2-py2.py3-none-any.whl
Skipping cofr, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-build-c0cyhdf6/cofr