pupygen error

root@edf6ac62919d:/opt/pupy/pupy# ./pupygen.py -h
No handlers could be found for logger "pupy.network.pss"
Traceback (most recent call last):
  File "./pupygen.py", line 14, in <module>
    from pupylib.utils.network import get_listener_ip, get_listener_port
  File "/opt/pupy/pupy/pupylib/__init__.py", line 19, in <module>
    from PupyCmd import *
  File "/opt/pupy/pupy/pupylib/PupyCmd.py", line 36, in <module>
    from network.lib.base_launcher import LauncherError
  File "/opt/pupy/pupy/network/lib/base_launcher.py", line 15, in <module>
    import network.conf
  File "/opt/pupy/pupy/network/conf.py", line 9, in <module>
    from .lib.launchers.connect import ConnectLauncher
  File "/opt/pupy/pupy/network/lib/launchers/connect.py", line 13, in <module>
    from ..base_launcher import *
AttributeError: 'module' object has no attribute 'LauncherError'