Replace characters in string from dictionary mapping

Question

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:

di         


        

Answer 1

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

Answer 2

Translations are way faster.

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

Answer 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 = ""
    for char in text:
        for i, j in dic.iteritems():
            if char == i:
                new_text += j
return new_text