How to ignore case in python

#How to ignore case in python? Here are two methods for you:

1. Regular expression, use IGNORECASE flag

>>> import re
>>> m = re.search('multi', 'A mUltiCased string', re.IGNORECASE)
>>> bool(m)

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2. Convert the two strings to the same uppercase before comparison, use the upper() method, or lowercase, lower()

>>> s = 'A mUltiCased string'.lower()
>>> s
'a multicased string'
>>> s.find('multi')
2

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