pydie Regex.py

import re

# Input
string = '3d6+2'

# Regex Pattern
pattern = re.compile(r'(?P<multiplier>\d+)d(?P<die>\d+)m?(?P<math>\D)?(?P<modifier>\d+)?')
match = pattern.match(string)

# Attributes
multiplier = match.group('multiplier')
die = match.group('die')
math = match.group('math')
modifier = match.group('modifier')