Uncaught ModuleNotFoundError: No module named 'pip'

[RobyHope]

Impossibile caricare il plugin 'NeatMap' a causa di un errore chiamando il metodo classFactory()
Steps to reproduce

1. First
2. Second
3. Third

Traceback (most recent call last):
  File "/home/osgeolive/.local/share/QGIS/QGIS3/profiles/default/python/plugins/NeatMap/classification.py", line 9, in <module>
    from pip._internal import main
  File "/usr/lib/python3/dist-packages/qgis/utils.py", line 685, in _import
    mod = _builtin_import(name, globals, locals, fromlist, level)
ModuleNotFoundError: No module named 'pip'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/qgis/utils.py", line 335, in startPlugin
    plugins[packageName] = package.classFactory(iface)
  File "/home/osgeolive/.local/share/QGIS/QGIS3/profiles/default/python/plugins/NeatMap/__init__.py", line 34, in classFactory
    from .neatmap import NeatMap
  File "/usr/lib/python3/dist-packages/qgis/utils.py", line 685, in _import
    mod = _builtin_import(name, globals, locals, fromlist, level)
  File "/home/osgeolive/.local/share/QGIS/QGIS3/profiles/default/python/plugins/NeatMap/neatmap.py", line 38, in <module>
    from .classification import *
  File "/usr/lib/python3/dist-packages/qgis/utils.py", line 685, in _import
    mod = _builtin_import(name, globals, locals, fromlist, level)
  File "/home/osgeolive/.local/share/QGIS/QGIS3/profiles/default/python/plugins/NeatMap/classification.py", line 16, in <module>
    from pip._internal import main
  File "/usr/lib/python3/dist-packages/qgis/utils.py", line 685, in _import
    mod = _builtin_import(name, globals, locals, fromlist, level)
ModuleNotFoundError: No module named 'pip'

NeatMap 1.2, QGIS 3.4.10-Madeira on Linux 5.0.0-23-generic