how do I replace a letter in word with another letter, or with a key from a dictionary

Question

def translate(phrase):
    translated_word = phrase
    for letter in phrase:
        if letter == "a":
            translated_word.replace(letter, "1", 1)
    print(translated_word)
         
            
print(translate(input("Enter: ")))

Output: None

this question may help: https://stackoverflow.com/questions/41922629/convert-text-to-braille-unicode-in-python/41922947#41922947 — hiro protagonist, Apr 20 '21 at 14:41
@BhavyadeepYadav yes, I know, but ``print(translate(...))`` results in ``Output: None``. — Mike Scotty, Apr 20 '21 at 14:48
Does this answer your question? [can you write a str.replace() using dictionary values in Python?](https://stackoverflow.com/questions/14156473/can-you-write-a-str-replace-using-dictionary-values-in-python) — Henry Ecker, Apr 21 '21 at 04:10

score 3 · Answer 1 · answered Apr 20 '21 at 14:44

3

def translate(phrase):
    translated_word = phrase
    translationDict = {
        'a': '1'
    }
    for k,v in translationDict.items():
        translated_word = translated_word.replace(k, v)
    return translated_word
         
            
print(translate('dupa'))

answered Apr 20 '21 at 14:44

Vulwsztyn

2,140
1
12
20

2

Good code. The answer would be even better if you added some explanation. – Matthias Apr 20 '21 at 14:46
I must get used to explaining my code :), I always think it's self-explanatory – Vulwsztyn Apr 20 '21 at 14:50

score 1 · Answer 2 · answered Apr 20 '21 at 14:45

I’m not sure why you try to write a function to do that. The standard string method replace() already does what you want:

print(input("Enter: ").replace("a", "1"))

Note that the replace() method does not change the string (strings are immutable), but instead it returns a new string.

how do I replace a letter in word with another letter, or with a key from a dictionary

2 Answers2