metalshark/lesscss-python — pull request #4 by encorehu (2014-10-27 12:34:05+00:00)
Title: fix ValueError: .5em and fix  ValueError: string cannot be subtracted from string

failed parse case:

font-size: 2.5em;

rasie `ValueError: .5em`

display:inline-block

rasie `ValueError: string cannot be subtracted from string`

and i delete some whitespaces using pep8 check.