18Anagram Check
Mediumstringssorting
Two phrases are anagrams when they use exactly the same letters the same number of times, like listen and silent.
Write is_anagram(a, b) that returns True if they are anagrams. Ignore spaces and upper/lower case.
Examples
Example 1
>>> is_anagram('listen', 'silent') True
Example 2
>>> is_anagram('hello', 'world') False
Run examples checks the 2 examples above. Submit runs all 7 tests, including hidden edge cases, and marks the challenge solved.