Iterative find/replace from a list of tuples in Python

Question

I have a list of tuples, each containing a find/replace value that I would like to apply to a string. What would be the most efficient way to do so? I will be applying this

Answer 1

Same answer as mhawke, enclosed with method str_replace

def str_replace(data, search_n_replace_dict):
    import re
    REPLACEMENTS = search_n_replace_dict

    def replacer(m):
        return REPLACEMENTS[m.group(0)]

    r = re.compile('|'.join(REPLACEMENTS.keys()))
    return r.sub(replacer, data)

Then we can call this method with example as below

s = "abcd abcd efgh efgh;;;;;; lkmnkd kkkkk"
d = dict({ 'abcd' : 'aaaa', 'efgh' : 'eeee', 'mnkd' : 'mmmm' })


print (s)
print ("\n")
print(str_replace(s, d))

output :

abcd abcd efgh efgh;;;;;; lkmnkd kkkkk


aaaa aaaa eeee eeee;;;;;; lkmmmm kkkkk