Elementary Python: assigning characters to string

Question

def anti_vowel(text):
    for c in text:
        if c == "e":
            c = "2"
    return text
print anti_vowel("ee2ee")

Why does this print "ee2ee", not "22222"?

I said, whenever "e" comes out, replace it to "2".

I really can't understand.

Strings are immutable. Assigning `c = "2"` does not change the string. — hoffee, Jul 12 '18 at 19:24
Even if strings were mutable, assigning `c = "2"` still wouldn't change the string. — Aran-Fey, Jul 12 '18 at 19:26

score 2 · Accepted Answer · answered Jul 12 '18 at 19:25

2

You loop over text by making consecutive copies of characters into c.
You only ever change c.

c = "2"

There is nothing which changes text before you return it.

answered Jul 12 '18 at 19:25

Yunnosch

1 Answers1