How to enable linting in jupyter notebooks

[f-ritter]

Hello

The readme mentions:

Editor extensions like VIM, bracket colorization, linters and many more are available while editing a cell.

How can we enable linters? The issues don't show up in the problems tab and aren't underlined like in .py files.
It's important to us that we don't have to start this process manually but see issues while coding.

Kind Regards

[IanMatthewHuff]

Do you have the "Python" extension also installed? The Jupyter extension doesn't provide the actual linting / formatting support. You need to have the Python extension in addition. If you have that installed you should see linting errors and error squiggles in notebook files.

[IanMatthewHuff]

Hmm, so that python.linting.pylintEnabled setting still looks wrong to me. It's true and I'd try that on false to make sure that pylint is not getting started. @debonte Any advice here? I know these settings have been changing around a bit recently.

[f-ritter]

Tried it with python.linting.pylintEnabled: false in both settings files also :/

[debonte]

@f-ritter, can you provide some sample code along with the errors you are expecting to see (but aren't)?

Pylance is not really a linter. The errors that it reports are more focused on type checking.

[f-ritter]

@debonte Oh, okey. Just checked some Pylance scenarios and they're showing. For example:

def example_function(example_text: str):
    print(example_text)

example_function(1)

But pylint or flake8 isn't. For example:

a = 1
if a == a:
    a = 2 

I should see "Redundant comparison" and "Trailing whitespace" (after a = 2)

[debonte]

@karthiknadig, I tried both pylint (pip installed) and the Pylint extension and saw the same behavior as @f-ritter -- we see pylint errors in normal .py files but not in notebooks. Does pylint just not support notebooks at the moment?