self.initialize()
    |    -> <function Manager.initialize at 0x7fceb0a4d950>
    -> <flexget.manager.Manager object at 0x7fceb204add8>
  File "/home/loke/.psources/flexget/lib/python3.7/site-packages/flexget/manager.py", line 215, in initialize
    extra_components=[os.path.join(self.config_base, 'components')],
                      |  |    |    |    -> '/home/loke/.flexget'
                      |  |    |    -> <flexget.manager.Manager object at 0x7fceb204add8>
                      |  |    -> <function join at 0x7fceb2c67ea0>
                      |  -> <module 'posixpath' from '/home/loke/.psources/flexget/lib/python3.7/posixpath.py'>
                      -> <module 'os' from '/home/loke/.psources/flexget/lib/python3.7/os.py'>
  File "/home/loke/.psources/flexget/lib/python3.7/site-packages/flexget/plugin.py", line 555, in load_plugins
    _load_plugins_from_dirs(extra_plugins)
    |                       -> ['/home/loke/.flexget/plugins', '/home/loke/.psources/flexget/lib/python3.7/site-packages/flexget/plugins']
    -> <function _load_plugins_from_dirs at 0x7fceb0f59d90>
  File "/home/loke/.psources/flexget/lib/python3.7/site-packages/flexget/plugin.py", line 473, in _load_plugins_from_dirs
    _import_plugin(module_name, plugin_path)
    |              |            -> PosixPath('/home/loke/.psources/flexget/lib/python3.7/site-packages/flexget/plugins/clients/pyload.py')
    |              -> 'flexget.plugins.clients.pyload'
    -> <function _import_plugin at 0x7fceb0f59d08>
> File "/home/loke/.psources/flexget/lib/python3.7/site-packages/flexget/plugin.py", line 424, in _import_plugin
    import_module(module_name)
    |             -> 'flexget.plugins.clients.pyload'
    -> <function import_module at 0x7fceb2ba36a8>
  File "/home/loke/.psources/flexget/lib/python3.7/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           |          |           |    |        |        -> 0
           |          |           |    |        -> None
           |          |           |    -> 0
           |          |           -> 'flexget.plugins.clients.pyload'
           |          -> <function _gcd_import at 0x7fceb2ce5e18>
           -> <module 'importlib._bootstrap' (frozen)>
  File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 728, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/loke/.psources/flexget/lib/python3.7/site-packages/flexget/plugins/clients/pyload.py", line 11, in <module>
    from packaging import version

ModuleNotFoundError: No module named 'packaging'