Remap diagnostic error level

[mosheavni]

Hi, I have flake8 for diagnostics, and it marks the error line too long as error.
I'd rather it be on informational level.
I tried:

  "python.analysis.information": ["line too long"],

But of course it does not work.
Can it be done?
Also, when fixing a problem, the gutter doesn't refresh until I save the file. Can I make it lint as soon as I make the fix?
Thanks.