convert_string_using_listMethods.py- Uses list methods to change the string "python is fun" to "py is on" convert_string_using_listSlicing.py- Uses list slicing to change the string "python is fun" to "py is on" amstrong.py- This program checks in the input number is an amstrong number or not identify_vowels.py - Checks if the user input string contains vowels vowelCount_usingDictionary.py- Counts the frequency of each vowel in a user input string using Dictionary methods VowelCount_sortedDictionary_noInitialisation.py- Counts the frequency of each vowel in a user input string without initialising dictionary