Hiroshiba Hiroshiba

## change_case.py
from itertools import chain
import re


def _parse(string):
    """
    >>> _parse('snake_case')
    ('snake', 'case')
    >>> _parse('PascalCase')
    ('pascal', 'case')
	from itertools import chain
	import re


	def _parse(string):
	"""
	>>> _parse('snake_case')
	('snake', 'case')
	>>> _parse('PascalCase')
	('pascal', 'case')