python strip non numeric characters from string code example

Example 1: python strip non numeric in string

>>> import re
>>> re.sub("[^0-9]", "", "sdkjh987978asd098as0980a98sd")
'987978098098098'

Example 2: python remove non letters from string

def nospecial(text):
	import re
	text = re.sub("[^a-zA-Z0-9]+", "",text)
	return text