psf / black / 7660802008

96%

master: 96%

push

github

Simplify code in lines.py (#4167)

This has been getting a little messy. These changes neaten things up, we
don't have to keep guarding against `self.previous_line is not None`, we
make it clearer what logic has side effects, we reduce the amount of
code that tricky `before` could touch, etc

2989 of 3200 branches covered (0.0%)

7090 of 7358 relevant lines covered (96.36%)

4.81 hits per line