Python String isalpha() Method (original) (raw)

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()

Python `

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

Table of Content

• Syntax of isalpha() Method
• Example of isalpha() Method
  • String with Space
  • String with Numbers
• Frequently Asked Questions (FAQs) on isalpha()

Syntax of isalpha() Method

string.isalpha()

Parameter:

• No parameters are required.

Return Type:

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

Example of isalpha() Method

String with Space

Python `

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

`

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

String with Numbers

Python `

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

`

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