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Python string isdecimal() Method
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Python String isalpha() Method

Last Updated : 13 Nov, 2024
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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)

Output
True False

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())

Output
False

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())

Output
False

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


Next Article
Python string isdecimal() Method

A
AyushSaxena
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Article Tags :
  • Python
  • Python-Built-in-functions
  • python-string
Practice Tags :
  • python

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