Fix invalid regex escapes #76
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\d is interpreted as the byte "\d" rather than the characters "\" and "d" which the python regex engine is looking for. Double backslash escapes the "\" to produce the correct behaviour. In python 3.6 and onwards, this bug produces SyntaxWarning: invalid escape sequence '\d'
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\d is interpreted as the byte "\d" rather than the characters "" and "d" which the python regex engine is looking for. Double backslash escapes the "" to produce the correct behaviour. In python 3.6 and onwards, this bug produces
SyntaxWarning: invalid escape sequence '\d'
Alternatively, the regex strings could be changed to
r"\d"raw strings instead.