Error when invoking dragonfire about dragonfire HOT 5 CLOSED

rayne@Asus:~/Desktop/dragonfire/Dragonfire-master$ dragonfire
Traceback (most recent call last):
  File "/usr/share/python/dragonfire/bin/dragonfire", line 6, in <module>
    from pkg_resources import load_entry_point
  File "/usr/share/python/dragonfire/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 3142, in <module>
    @_call_aside
  File "/usr/share/python/dragonfire/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 3126, in _call_aside
    f(*args, **kwargs)
  File "/usr/share/python/dragonfire/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 3155, in _initialize_master_working_set
    working_set = WorkingSet._build_master()
  File "/usr/share/python/dragonfire/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 666, in _build_master
    return cls._build_from_requirements(__requires__)
  File "/usr/share/python/dragonfire/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 679, in _build_from_requirements
    dists = ws.resolve(reqs, Environment())
  File "/usr/share/python/dragonfire/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 867, in resolve
    raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'requests<2.19,>=2.18.2' distribution was not found and is required by pyowm