Missing dependencies for install via pip

[rfay]

Installing via pip I found that I had to manually track down and install these dependencies:

• python--dateutils
• pyyaml
• bs4

This is on MacOS Sierra with homebrew, pip 9.0.1, python 2.7.13

$ circlecli --help
Traceback (most recent call last):
  File "/usr/local/bin/circlecli", line 80, in <module>
    from circlecli import CircleAPI, circle_status, validate_circle_yml
  File "/usr/local/lib/python2.7/site-packages/circlecli/__init__.py", line 1, in <module>
    from .circleapi import CircleAPI
  File "/usr/local/lib/python2.7/site-packages/circlecli/circleapi.py", line 6, in <module>
    from dateutil import parser as dp, tz
ImportError: No module named dateutil

$ circlecli --help
Traceback (most recent call last):
  File "/usr/local/bin/circlecli", line 80, in <module>
    from circlecli import CircleAPI, circle_status, validate_circle_yml
  File "/usr/local/lib/python2.7/site-packages/circlecli/__init__.py", line 2, in <module>
    from .circleutils import circle_status, validate_circle_yml
  File "/usr/local/lib/python2.7/site-packages/circlecli/circleutils.py", line 5, in <module>
    import yaml
ImportError: No module named yaml

$ circlecli --help
Traceback (most recent call last):
  File "/usr/local/bin/circlecli", line 80, in <module>
    from circlecli import CircleAPI, circle_status, validate_circle_yml
  File "/usr/local/lib/python2.7/site-packages/circlecli/__init__.py", line 2, in <module>
    from .circleutils import circle_status, validate_circle_yml
  File "/usr/local/lib/python2.7/site-packages/circlecli/circleutils.py", line 6, in <module>
    from bs4 import BeautifulSoup
ImportError: No module named bs4