find and replace multiple words in a file python

Question

I took example code from here.

f1 = open(\'file1.txt\', \'r\')
f2 = open(\'file2.txt\', \'w\')
for line in f1:
    f2.write(line.replace(\'old_text\', \'new         


        

Answer 1

You can iterate over your check words and toReplace words using zip and then replace.

Ex:

checkWords = ("old_text1","old_text2","old_text3","old_text4")
repWords = ("new_text1","new_text2","new_text3","new_text4")

for line in f1:
    for check, rep in zip(checkWords, repWords):
        line = line.replace(check, rep)
    f2.write(line)
f1.close()
f2.close()