pkg_ressources not found for non root user

[Sommcrane]

I installed pyxtrlock as root and if I try to run it as a non root user, I get the following error :

user@myserver:~$ pyxtrlock
Traceback (most recent call last):
  File "/usr/local/bin/pyxtrlock", line 4, in <module>
    __import__('pkg_resources').run_script('pyxtrlock==0.4', 'pyxtrlock')
  File "/usr/lib/python3.6/site-packages/pkg_resources/__init__.py", line 3095, in <module>
    @_call_aside
  File "/usr/lib/python3.6/site-packages/pkg_resources/__init__.py", line 3079, in _call_aside
    f(*args, **kwargs)
  File "/usr/lib/python3.6/site-packages/pkg_resources/__init__.py", line 3108, in _initialize_master_working_set
    working_set = WorkingSet._build_master()
  File "/usr/lib/python3.6/site-packages/pkg_resources/__init__.py", line 570, in _build_master
    ws.require(__requires__)
  File "/usr/lib/python3.6/site-packages/pkg_resources/__init__.py", line 888, in require
    needed = self.resolve(parse_requirements(requirements))
  File "/usr/lib/python3.6/site-packages/pkg_resources/__init__.py", line 774, in resolve
    raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'pyxtrlock==0.4' distribution was not found and is required by the application