E101 False positive in multiline string

[david-waterworth]

I have a python model that contains rest endpoint queries defined as multi-line strings, i.e.

query = """
    query ...
"""

ruff is reporting E101 Indentation contains mixed spaces and tabs for the text inside the string.

Technically this is correct as the indentation of the query does contain a mix of tab and spaces - but in general, I feel that ruff shouldn't try and lint a text block.

Note I observed this in a notebook - I've not tested in a py file

[charliermarsh]

So pycodestyle has this behavior too, though it's unclear whether they consider it correct (PyCQA/pycodestyle#600, PyCQA/pycodestyle#376, PyCQA/pycodestyle#45).

We actually disabled W109 (which flags uses of tabs) within such strings. I'm open to disabling E101 too -- but what's the valid use-case for mixing spaces and tabs within a single indent, even within a string?

[njzjz]

In a unit test, one may want to check if a file has the expected content.

a = """
	    example1
	    example2
"""
with open("some_file.txt") as f:
    b = f.read()
assert a == b

The fix breaks the test.

[MichaReiser]

Ignoring leading whitespace in multiline strings seems reasonable because it is not an indentation.