Lines should be no longer than 80 characters unless limiting line length significantly impacts readability. For Python, this limitation is flexible since breaking a line often impacts readability, but definitely keep it under 120 characters.
Where not conflicting with this style guide, it is recommended (but not required) to follow PEP 8.
It is recommended (but not required) to format Python code such that pylint --disable=line-too-long,too-many-lines,too-many-instance-attributes,too-many-arguments,too-many-statements produces minimal complaints (even better if you don’t need to disable all those checks).
