Check if a character in a string is a letter (Python)

The quickest way to check whether a character in a string is a letter is to use the str.isalpha() function.

character = 'a'
print(character.isalpha())

1 2	character = 'a' print(character.isalpha())

This code is going to return True because ‘a’ is a letter.

Check all characters inside a string

If you want to check the entire string for alphanumerical characters, you can use this code:

string = 'Year 1984!'

for character in string:
    print(character, character.isalpha())

string = 'Year 1984!'

for character in string:

print(character, character.isalpha())

If you run it, it’s going to return the following output:

Y True
e True
a True
r True
  False
1 False
9 False
8 False
4 False
! False

Y True

e True

a True

r True

False

1 False

9 False

8 False

4 False

! False

Only the first four characters inside the string are letters, and the result shows us that.

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