In this source code example, we will demonstrate how to use the Python string isalpha() method to check if all characters in a string are alphabetic.

Use the Python string isalpha() method to check if all characters in a string are alphabetic.

The alphabetic characters are characters defined as letters in the Unicode character database.

Python string isalpha() method example

The following example uses the isalpha() method to check if a string contains alphabetic characters:

name = 'Rock'
print(name.isalpha())

Output:

True

It returned True because the string 'Rock' contains only alphabetic characters.

The following example returns False because the string 'John Cena' contains a space:

name = 'John Cena'
print(name.isalpha())

Output:

False

The following example returns False because the string contains a number:

name = 'John Cena 123'
print(name.isalpha())

Output:

False

The following example returns False because the string is empty:

name = ''
print(name.isalpha())

Output:

False

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