Installing with poetry add ensta failed importing Guest (ensta = "^4.6")

[marosjanco]

Traceback (most recent call last):
  File "check_ensta.py", line 1, in <module>
    from ensta import Guest
  File "$py3.9_virtual_env_path\lib\site-packages\ensta\__init__.py", line 1, in <module>
    from ensta.Guest import Guest
  File "$py3.9_virtual_env_path\lib\site-packages\ensta\Guest.py", line 4, in <module>
    from .lib.Commons import (
  File "$py3.9_virtual_env_path\lib\site-packages\ensta\lib\__init__.py", line 1, in <module>
    from .Commons import (
  File "$py3.9_virtual_env_path\lib\site-packages\ensta\lib\Commons.py", line 5, in <module>
    from .Exceptions import NetworkError
  File "$py3.9_virtual_env_path\lib\site-packages\ensta\lib\Exceptions.py", line 37, in <module>
    class APIError(Exception):
  File "$py3.9_virtual_env_path\lib\site-packages\ensta\lib\Exceptions.py", line 39, in APIError
    def __init__(self, message: str | None = None):
TypeError: unsupported operand type(s) for |: 'type' and 'NoneType'

[diezo]

Try upgrading python to v3.11 or later.