How to replace all wildcards to "_"

Question

I want to replace "*×+)(÷-+%$#@ <>!" Into "_"

eg. a = "name* abince k a*"
into a = "name__abince_k_a'

Please help

Answer 1

use regular expression

import re
a="a*b&c"
b=re.sub("[^a-zA-Z0-9]","_",a)
print (b)