Long strings in Python

In Miro, we've got long strings that are displayed in the user interface. I think the code that defines these strings is messy and hard to parse. For example:

def some_func():
    description = _("""\
This is a really long description that has multiple sentences and a few \
things that need to %(getfilledin)s and it goes on and on and on and on \
and I'm not really sure what's the best way to format it so that it's happy \
in editors and easier to parse.""") % {"getfilledin": blahblah}

PEP-8 doesn't address this, which is fine. I was curious to see what other projects do.

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