Fix typo in railroad.py

tabatkins / railroad-diagrams

:steam_locomotive: A small JS+SVG library for drawing railroad syntax diagrams, like on JSON.org. Now with a Python port!

MIT License

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Closed lurch closed 4 years ago

lurch commented 4 years ago

Without this fix, I get

  File "...../python3.6/site-packages/railroad.py", line 222, in __repr__
    return 'Style(%r)' % css
NameError: name 'css' is not defined