Do we have a test case like this?

def f():
    "docstring"
    "some random string"

I haven't checked but your code looks like it may end up putting some random string in __doc__.

Do we have a test case like this?

def f():
    "docstring"
    "some random string"

I haven't checked but your code looks like it may end up putting some random string in __doc__.

It would turn some random string into an f-string to prevent that. I agree we should have this test.