Anagram Checker: A Python Challenge

Introduction

An anagram is a word or phrase formed by rearranging the letters of a different word or phrase. For example, "listen" is an anagram of "silent". In this challenge, you will be asked to write a function that checks if two strings are anagrams of each other.

Skills Graph

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String Anagram

Write a function is_anagram(s1, s2) that takes two strings as arguments and returns True if they are anagrams of each other, and False otherwise. The function should be case-insensitive, ignore spaces, punctuation, and special characters.

To solve this problem, you can follow these steps:

Use str.isalnum() to filter out non-alphanumeric characters and str.lower() to transform each character to lowercase.
Use collections.Counter to count the resulting characters for each string and compare the results.

from collections import Counter

def is_anagram(s1, s2):
  return Counter(
    c.lower() for c in s1 if c.isalnum()
  ) == Counter(
    c.lower() for c in s2 if c.isalnum()
  )

is_anagram('#anagram', 'Nag a ram!')  ## True

Summary

In this challenge, you have learned how to check if two strings are anagrams of each other. You have used str.isalnum() to filter out non-alphanumeric characters, str.lower() to transform each character to lowercase, and collections.Counter to count the resulting characters for each string and compare the results.

Anagram Checker: A Python Challenge

Introduction

Skills Graph

String Anagram

Summary

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