Don't copy the code DescriptionCredit card companies and banks use built-in security measures when creating theaccount numbers on credit cards to make sure the card numbers follow certain rules(you didn't think they were random, did you?). This means that there are only certainvalid credit card numbers, and validity can quickly be detected by using an algorithmthat may involve adding up parts of the numbers or performing other checks.In this activity, you will implement a function that determines whether or not a cardnumber is valid, according to some simple algorithms. Note that these algorithms arepurely made-up; don't try to use them to create fake credit card numbers! :-)We will assume that the credit card number is a string consisting of 14 characters and isin the format #### #### ####, including the dashes, where '#' represents a digitbetween 0-9, so that there are 12 digits overall. We will revisit this assumption in the anoptional later activity.In the space below, implement a function called "verify" that takes a single parametercalled "number" and then checks the following rules:1. The first digit must be a 4.2. The fourth digit must be one greater than the fifth digit; keep in mind that theseare separated by a dash since the format is ####-####-3. The sum of all digits must be evenly divisible by 4.4. If you treat the first two digits as a two-digit number, and the seventh and eighthdigits as a two-digit number, their sum must be 100. 12345678def verify(number): # do not change this line!#write your code here so that it verifies the card number# be sure to indent your code!return True # modify this line as needed910input = "5000-0000-0000" # change this as you test your functionoutput = verify(input) # invoke the method using a test inputprint(output) # prints the output of the function1112# do not remove this line!The rules must be checked in this order, and if any of the rules are violated, the functionshould return the violated rule number, e.g. if the input is "4238-0679-9123", then thefunction should return 2, indicating that rule #2 was violated because although rule #1was satisfied (the first digit is a 4), rule #2 was not, since the fourth digit (which is 8) isnot one greater than the fifth (which is 0). If all rules are satisfied, then the functionshould return True.Note that the card number is not actually a number, but is a string of characters. InPython, you can generally use a string the same way you would use a list, e.g.accessing individual characters using their 0-based index. Hint: You will need to do thisfor checking all the rules.However, when you access a character using its 0-based index, Python will treat it as acharacter/letter and not a number, even if it's a digit, and you need to be careful abouthow you use it in mathematical operations. For instance, if you had the characters '1'and '2' and try to add them, Python would concatenate them and use them to form alonger string; in this case, you would get "12". However, if you try to subtract, multiply,divide, etc. then Python will give you an error.To convert a character/letter to a number, use the "int" function, e.g. "x = int('1')" willconvert the character/letter '1' to the number 1 so that you can use it in mathematicaloperations. Hint: you will need this for rules 2-4.

Python Program: ##This is verify() function, it takes a string, number as input def verify(number):…

123 def verify(number): # do not change this line! # write your code here so that it verifies the card number # be sure to indent your code! return True # modify this line as needed 8 9 10 input = "5000-0000-0000" # change this as you test your function output = verify(input) # invoke the method using a test input print(output) # prints the output of the function 11 12 # do not remove this line! The rules must be checked in this order, and if any of the rules are violated, the function should return the violated rule number, e.g. if the input is "4238-0679-9123", then the function should return 2, indicating that rule #2 was violated because although rule #1 was satisfied (the first digit is a 4), rule #2 was not, since the fourth digit (which is 8) is not one greater than the fifth (which is 0). If all rules are satisfied, then the function should return True. Note that the card number is not actually a number, but is a string of characters. In Python, you can generally use a string the same way you would use a list, e.g. accessing individual characters using their 0-based index. Hint: You will need to do this for checking all the rules. However, when you access a character using its 0-based index, Python will treat it as a character/letter and not a number, even if it's a digit, and you need to be careful about how you use it in mathematical operations. For instance, if you had the characters '1' and '2' and try to add them, Python would concatenate them and use them to form a longer string; in this case, you would get "12". However, if you try to subtract, multiply, divide, etc. then Python will give you an error. To convert a character/letter to a number, use the "int" function, e.g. "x = int('1')" will convert the character/letter '1' to the number 1 so that you can use it in mathematical operations. Hint: you will need this for rules 2-4. 567

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...