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Python String isalpha() Method - GeeksforGeeks

Last Updated : 13 Nov, 2024

The isalpha() method checks if all characters in a given string are alphabetic. It returns True if every character in the string is a letter and False if the string contains any numbers, spaces, or special characters.

Let’s start with a simple example of using isalpha()

s1 = "HelloWorld"
res1 = s1.isalpha()
print(res1)

s2 = "Hello123"
res2 = s2.isalpha()
print(res2)

Explanation: The string s1 are contains only alphabetic characters, so isalpha() returns True but the string s2 contains non-alphabetic characters so isalpha() returns False

string.isalpha()

• No parameters are required.

• Returns True if all characters in string are alphabetic (A-Z, a-z) and False otherwise.

s = "Hello World"
print(s.isalpha())

Explanation: Since s contains a space which is not an alphabetic character, so isalpha() returns False.

s = "Python123"
print(s.isalpha())

Explanation: Here, s contains numbers (123), so isalpha() returns False.

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