Installing via pip fails

[RafaelGPL]

Installing via pip produces an error. I'm using python 3.4.

TypeError: parse_requirements() missing 1 required keyword argument: 'session'
Complete output from command python setup.py egg_info:
Traceback (most recent call last):

  File "<string>", line 20, in <module>

  File "/.../.../robobrowser/setup.py", line 38, in <module>

    for requirement in parse_requirements('requirements.txt')

  File "/.../.../robobrowser/setup.py", line 37, in <listcomp>

    str(requirement.req)

  File "/.../.../python3.4/site-packages/pip/req/req_file.py", line 19, in parse_requirements

    "parse_requirements() missing 1 required keyword argument: "

TypeError: parse_requirements() missing 1 required keyword argument: 'session'

----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /.../.../robobrowser

[asmaier]

I have the same issue. I'm using python 2.7.9.

[asmaier]

See also here: http://stackoverflow.com/questions/27869152/heroku-typeerror-parse-requirements-missing-1-required-keyword-argument-ses