Disable invalid name arguments pylint

Question

I have code like this:

def func(df):
    return df.column[0]

I am running pylint and it gives me this message all the time because it flags df as an invalid name despite it’s convention.

C:210, 9: Invalid variable name "df" (invalid-name)

Where 210 refers to the row number (not the message code)

Pylint seems to say I can exclude messages by id type but:

It doesn’t seem to list the message id, just the row and column numbers
I don’t see where I would exclude messages for a specific variable name but not warnings for other variable names.

Asked By: Chris

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Source

Answer 1

In your pylintrc file you can define a good-names variable with a comma seperated list of acceptable names that would otherwise fail the regex.

# Good variable names which should always be accepted, separated by a comma
good-names=i,j,df

If you do not already have a pylintrc file for your project you can generate a template to start with by running:

pylint --generate-rcfile > pylintrc

Answered By: Kara

Answer 2

If you want to allow any 1 or 2 length variable names, you can add/edit this line in the pylintrc file:

# allow 1 or 2 length variable names
good-names-rgxs=^[_a-z][_a-z0-9]?$

^          # starts with
[_a-z]     # 1st character required
[_a-z0-9]? # 2nd character optional
$          # ends with

If you just want to have a whitelist of allowed variable names, then add/edit this line in the pylintrc file:

good-names=ax, df

Answered By: wisbucky

Answer 3

If you want to keep all your settings in pyproject.toml:

[tool.pylint]
good-names="ls,rm"

Answered By: flipback

Disable invalid name arguments pylint

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