Password generator:

Source code:

            import random
            import array
            import time
            
            MAX_LEN = int(input("Enter the length of the password: "))
            
            if MAX_LEN>100:
                print("The maximum length of the password is 100.")
                time.sleep(.5)
                print("closing...")
                time.sleep(1)
                exit()
            
            DIGITS = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9'] 
            LOCASE_CHARACTERS = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h',
                                 'i', 'j', 'k', 'm', 'n', 'o', 'p', 'q',
                                 'r', 's', 't', 'u', 'v', 'w', 'x', 'y',
                                 'z']
             
            UPCASE_CHARACTERS = ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',
                                 'I', 'J', 'K', 'M', 'N', 'O', 'P', 'Q',
                                 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y',
                                 'Z']
             
            SYMBOLS = ['@', '#', '$', '%', '=', ':', '?', '.', '/', '|', '~', '>',
                       '*', '(', ')', '<']
            
            COMBINED_LIST = DIGITS + UPCASE_CHARACTERS + LOCASE_CHARACTERS + SYMBOLS
            
            rand_digit = random.choice(DIGITS)
            rand_upper = random.choice(UPCASE_CHARACTERS)
            rand_lower = random.choice(LOCASE_CHARACTERS)
            rand_symbol = random.choice(SYMBOLS)
            
            temp_pass = rand_digit + rand_upper + rand_lower + rand_symbol
            
            for x in range(MAX_LEN - 4):
                temp_pass = temp_pass + random.choice(COMBINED_LIST)
                temp_pass_list = array.array('u', temp_pass)
                random.shuffle(temp_pass_list)
            
            password = ""
            for x in temp_pass_list:
                    password = password + x
            
            print("generated password: "+str(password))
            
            input("Close application?(Type anything then press enter when you are ready): ")
            print("closing...")
            time.sleep(1)