CODEWITHSUNDEEP
python
Brian
Brian

Reputation: 151

Defining function to check if string is valid

letters1 = "abcdefghijklmnopqrstuvwxyz"
letters2 = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"

def is_valid(strs):
    char_b = True
    for char in range(0, len(strs)):
        if strs[char] not in (letters1 or letters2):
            char_b == False
    return char_b

I don't understand why this won't work, anyone mind giving me a hint? It just always returns true.

Upvotes: 0

Views: 55

Answers (1)

Martijn Pieters
Martijn Pieters

Reputation: 1121614

You need to set char_b, not test for equality. Replace:

char_b == False

with

char_b = False

Your test is incorrect:

if strs[char] not in letters1 + letters2:

or simplify your function to:

def is_valid(strs):
    return strs.isalpha()

Upvotes: 2

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