How can I check if a string contains only alphabetic characters in Python?
Antek N

In Python, you can check if a string contains only alphabetic characters using various methods. Here's a detailed explanation of a few commonly used approaches: Using the isalpha() method: Theisalpha() method is a built-in string method that returnsTrue if all characters in the string are alphabetic (letters), andFalse otherwise. You can use this method to check if a string contains only alphabetic characters.

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my_string = "HelloWorld"

if my_string.isalpha():
    print("The string contains only alphabetic characters.")
else:
    print("The string does not contain only alphabetic characters.")

In this example,my_string.isalpha() checks if the string"HelloWorld" contains only alphabetic characters. If it does, the corresponding message is printed. Using regular expressions: If you want to check for more specific patterns, such as allowing certain additional characters like spaces or hyphens, you can use regular expressions (re module) to match the desired pattern.

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import re

my_string = "Hello World"

if re.match(r'^[a-zA-Z\s-]+$', my_string):
    print("The string contains only alphabetic characters.")
else:
    print("The string does not contain only alphabetic characters.")

In this example,re.match(r'^[a-zA-Z\s-]+$', my_string) uses a regular expression pattern[a-zA-Z\s-]+ to match one or more alphabetic characters, spaces, or hyphens. There.match() function checks if the entire string matches this pattern, ensuring that it contains only alphabetic characters and the specified additional characters. Using the isalnum() method (if excluding spaces): If you want to exclude spaces and check for alphanumeric characters only, you can use theisalnum() method. This method returnsTrue if the string contains only alphanumeric characters (letters or digits), andFalse otherwise.

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my_string = "Hello123"

if my_string.isalnum():
    print("The string contains only alphabetic characters or digits.")
else:

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