Replace Characters In String From Dictionary Mapping

I'm pretty new to python, so forgive me if I am missing an obvious built-in function. I have a dictionary mapping I generated like the following: dictionary = dict(zip(restAlphaSet

Solution 1:

Translations are way faster.

>>>import string>>>text.translate(string.maketrans("".join(restAlphaSet),"".join(item)))

Solution 2:

You are overlooking the translate function. See here for a usage example.

Solution 3:

I realize it is an old question, however it seems there was no answer using dictionary with mapping for both a->b and b->a.

I needed a similar function, and the trick that did a job was to first iterate over the string in which we need replacement and then for each char to look for a mapping.

def replace_all(text, dic):
    new_text =""forchar in text:
        for i, j in dic.iteritems():
            ifchar == i:
                new_text += j
return new_text