Specify minimum Python version

[mc-mario]

Good morning!

I tried running the tests but I was getting the following error;

  File "/Users/-/GitHub/myPyllant/tests/generate_test_data.py", line 31, in main
    from myPyllant.api import API_URL_BASE, MyPyllantAPI
  File "/Users/-/GitHub/myPyllant/src/myPyllant/api.py", line 10, in <module>
    from myPyllant.models import (
  File "/Users/-/GitHub/myPyllant/src/myPyllant/models.py", line 58, in <module>
    class Zone(BaseModel):
  File "/Users/-/GitHub/myPyllant/src/myPyllant/models.py", line 69, in Zone
    humidity: float | None
TypeError: unsupported operand type(s) for |: 'type' and 'NoneType'

After some digging I found this is due to | operator being a Python 3.10 feature, and I was running it with Python 3.9 (as hinted here in the setup.cfg)

Do you mind specifying the supported Python version somewhere?

Very cool project!

[signalkraft]

Thanks, I added a note in the README and changed the two remaining places where 3.9 was mentioned.