s.isalnum() returns True if s is nonempty and all its characters are alphanumeric (either a letter or a number), and False otherwise: Determines whether the target string consists of alphabetic characters. s.isalpha() returns True if s is nonempty and all its characters are alphabetic, and False otherwise: Determines whether the target string consists of digit characters. Python supports another binary sequence type called the bytearray. Consider the below examples for better understanding. on its own line. Make your program look like the following: Now that the account name is stored as a string in the variable account, you need to see whether it exists in the PASSWORDS dictionary as a key. The isX string methods are helpful when you need to validate user input. The projects are written in a style that takes you from a blank file editor window to a full, working program. 8. You will make use of indexing, slicing, and string methods in almost every Python program you write. In the standard and in this document, a code point is written using the notation U+265E to mean the character with value 0x265e (9,822 in decimal). The Formatter class in the string module allows you to create and customize your own string formatting behaviors using the same implementation as the built-in format () method. Split the string on "\u2022" and then use