• All of Luis' friends are Python programmers, so he wants to share the decoding function with them. Write another method to decodeLuis' message.You'll need to reverse the encryption scheme that Luis uses. After each vowel in the message (a, e, I, o, or u), he adds a letter (r, s, or t)followed by the same vowel.Function heading: def decode_message(message):Parameter Specification: An encoded sentenceReturn Value Specification: The decoded version of the input sentenceSample Function Call: decode_message("Herelloto Wororld")Sample Return Value: "Hello World"Sample Function Call:decode_message("Disinneter tosonisight asat Tararata Thasairi.")Sample Return Value: "Dinner tonight at Tara Thai."Sample Function Call:decode_message("Meteeset asat seseveten otoclosock.")Sample Return Value: "Meet at seven oclock." Program: final.pySpecificationFirst, download the template file, final.py. This file contains the function names and documentation.You are required to add a header comment block with your name, the file name, the current semester, and year. Do not change the functionheaders, just add your implementation for each function where indicated.Add descriptive comments to your code. Remember to indent all the code for the function.Here are the functions that you will write:• Calculating tips is a common operation and the first function you write for the final project will do exactly that. The functioncalculate_tip accepts two parameters, the bill amount and the percent to tip, and returns the amount of the tip to write into the bill. Thefunction should return the string "Invalid charge amount" if the charge is not more that 0 and "Invalid tip percent" if the tip is less than0.Function heading: def calculate tip(charge, tip_percent):Parameter Specification: charge is the total ch and tip_percent is the % of totalReturn Value Specification: the amount to tip based on the charge and percent givenSample Function Call: calculate tip(27.5, 20)Sample Return Value: 5.5Sample Function Call: calculate_tip(-1.0, 15)Sample Return Value: Invalid charge amountSample Function Call: calculate_tip(27.5, -1)Sample Return Value: Invalid tip percentThe function classify_student has an integer as a parameter and returns the string that represents the year according to thistable:YearCreditsFreshmen one to 23 credit hoursSophomores24 to 53 credit hoursJuniors 54 to 84 credit hoursSeniors 85 credit hours and moreFunction heading: def classify_student(credits):Parameter Specification: A positive integerReturn Value Specification: One of the following: Freshman, Sophomore, Junior, SeniorSample Function Call: classify_student(20)Sample Return Value: FreshmanSample Function Call: classify_student(120)Sample Return Value: SeniorSample Function Call: classify_student(0)Sample Return Value: Insufficient credits for classification• Luis likes to hold secret gatherings of his friends. He restricts who knows about them by sending out an encoded version of theinvitation. The function encode_message has a string (the message) as a parameter and returns the encoded message as a string.Here's the encryption scheme that Luis uses. After each vowel in the message (a, e, I, o, or u), he randomly selects a letter from (r, s, or t)followed by the same vowel.Function heading: def encrypt_message(message):Parameter Specification: A sentence in plain EnglishReturn Value Specification: The encoded version of the input sentenceSample Function Call: encrypt_message("Hello World")Sample Return Value: "Herelloto Wororld " or "Heselloro Wotorld" or some other variation

The Python code for the decode_message function is provided below:1def decode_message(message): 2…

• All of Luis' friends are Python programmers, so he wants to share the decoding function with them. Write another method to decode Luis' message. You'll need to reverse the encryption scheme that Luis uses. After each vowel in the message (a, e, i, o, or u), he adds a letter (r, s, or t) followed by the same vowel. Function heading: def decode_message(message): Parameter Specification: An encoded sentence Return Value Specification: The decoded version of the input sentence Sample Function Call: decode_message("Herelloto Wororld") Sample Return Value: "Hello World" Sample Function Call: decode_message("Disinneter tosonisight asat Tararata Thasairi.") Sample Return Value: "Dinner tonight at Tara Thai." Sample Function Call: decode_message("Meteeset asat seseveten otoclosock.") Sample Return Value: "Meet at seven oclock."

• All of Luis' friends are Python programmers, so he wants to share the decoding function with them. Write another method to decode Luis' message. You'll need to reverse the encryption scheme that Luis uses. After each vowel in the message (a, e, i, o, or u), he adds a letter (r, s, or t) followed by the same vowel. Function heading: def decode_message(message): Parameter Specification: An encoded sentence Return Value Specification: The decoded version of the input sentence Sample Function Call: decode_message("Herelloto Wororld") Sample Return Value: "Hello World" Sample Function Call: decode_message("Disinneter tosonisight asat Tararata Thasairi.") Sample Return Value: "Dinner tonight at Tara Thai." Sample Function Call: decode_message("Meteeset asat seseveten otoclosock.") Sample Return Value: "Meet at seven oclock."

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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