flake8-black error 'BLK100 Black would make changes' when formatted with Black --line-length=120

[jfo1925]

Hello, Getting error 'BLK100 Black would make changes' while running flake8-black after formatting the code with black src --line-length=120.

Example: Code after black src --line-length=120 (getting BLK100 error from flake8-black) target_df_add_guid = df_writable.transform(self._addGuid_id).drop("IVV_ATV_GUID_NO_BKEY")

Code with default black line line length which is 88, flake8-black does not complain for below code. target_df_add_guid = df_writable.transform(self._addGuid_id).drop( "IVV_ATV_GUID_NO_BKEY" )

Please advise how can we proceed with black formatting with line-length as 120 and flake8 doesn't complain about it?

[peterjc]

If you want to use line length 120 with black and flake8-black, put this in your black configuration file.

You should also update the flake8 line length or ignore E501.

[jfo1925]

I have used black src --line-length=120 and also updated .flake8 file with below content [flake8] max-line-length = 120 that means both black and flake8-black are referring to same length but flake8 throws some BLK100 errors

[peterjc]

OK, so you've configured flake8 via your .flake8 file to use 120 as the line length, that will stop E501 errors about long lines.

You still seem to be running black at the command line with argument --line-length=120, but in order to tell the flake8-black plugin to use line length 120, this has to go in the black settings within your pyproject.toml configuration file.