Capital letters
.upper() makes all letters in a string uppercase .lower() makes all letters in a string lowercase
.capitalize() will capitalize the first letter of a string
Find
.find() find the position of the first occurrence of a given prompt in a string .rfind() find the position of the last occurrence of a given prompt in a string
No occurrence
if none can be found, python will return -1
Count
.count() counts the amount of occurrences of a given prompt
Replace
.replace() replaces a prompt with another
example: phonenumber.replace(”-”, "")
True or False
.isdigit() if its a digit it will return True if its not a digit it returns False .isalpha() if its only alphabetical characters it will return True if its not only alphabetical characters it will return False (this includes spaces)