check_anagrams.py

"""
wiki: https://en.wikipedia.org/wiki/Anagram
"""

fromcollectionsimportdefaultdict


defcheck_anagrams(first_str: str, second_str: str) ->bool:
"""
 Two strings are anagrams if they are made up of the same letters but are
 arranged differently (ignoring the case).
 >>> check_anagrams('Silent', 'Listen')
 True
 >>> check_anagrams('This is a string', 'Is this a string')
 True
 >>> check_anagrams('This is a string', 'Is this a string')
 True
 >>> check_anagrams('There', 'Their')
 False
 """
first_str=first_str.lower().strip()
second_str=second_str.lower().strip()

# Remove whitespace
first_str=first_str.replace(" ", "")
second_str=second_str.replace(" ", "")

# Strings of different lengths are not anagrams
iflen(first_str) !=len(second_str):
returnFalse

# Default values for count should be 0
count: defaultdict[str, int] =defaultdict(int)

# For each character in input strings,
# increment count in the corresponding
foriinrange(len(first_str)):
count[first_str[i]] +=1
count[second_str[i]] -=1

returnall(_count==0for_countincount.values())


if__name__=="__main__":
fromdoctestimporttestmod

testmod()
input_a=input("Enter the first string ").strip()
input_b=input("Enter the second string ").strip()

status=check_anagrams(input_a, input_b)
print(f"{input_a} and {input_b} are {''ifstatuselse'not '}anagrams.")