python: how to remove certain characters

Question

how do i write a function removeThese(stringToModify,charsToRemove) that will return a string which is the original stringToModify string with the characters in charsToRemove removed from it.

Answer 1

>>> s = 'stringToModify'
>>> rem = 'oi'
>>> s.translate(str.maketrans(dict.fromkeys(rem)))
'strngTMdfy'

Answer 2

>>> string_to_modify = 'this is a string'
>>> remove_these = 'aeiou'
>>> ''.join(x for x in string_to_modify if x not in remove_these)
'ths s  strng'

Answer 3

Use regular expressions:

import re
newString = re.sub("[" + charsToRemove + "]", "", stringToModify)

As a concrete example, the following will remove all occurrences of "a", "m", and "z" from the sentence:

import re
print re.sub("[amz]", "", "the quick brown fox jumped over the lazy dog")

This will remove all characters from "m" through "s":

re.sub("[m-s]", "", "the quick brown fox jumped over the lazy dog")