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8. Name and Email Addresses Write a program that keeps names and email addresses in a dictionary as key-value pairs. The program should display a menu that lets the user look up a person's email address, add a new name and email address, change an existing email address, and delete an exist- ing name and email address. The program should pickle the dictionary and save it to a file when the user exits the program. Each time the program starts, it should retrieve the dictionary from the file and unpickle it.

8. Name and Email Addresses Write a program that keeps names and email addresses in a dictionary as key-value pairs. The program should display a menu that lets the user look up a person's email address, add a new name and email address, change an existing email address, and delete an exist- ing name and email address. The program should pickle the dictionary and save it to a file when the user exits the program. Each time the program starts, it should retrieve the dictionary from the file and unpickle it.

Database System Concepts
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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Chapter 9 Programming exercise 8
1904 or 1994. There are thrics in the file indicating this.) in that reads this file and creates a dictionary in which the keys are the names Jelles was not played Write a program of the teams, and each key's associated value is the number of times the team has won the World Series. The program should also create a dictionary in which the keys are the years, and each key's associated value is the name of the team that won that year. The program should prompt the user for a year in the range of 1903 through 2009. It should then display the name of the team that won the World Series that year, and the number of times that team has won the World Series. 8. Name and Email Addresses Write a program that keeps names and email addresses in a dictionary as key-value pairs. The program should display a menu that lets the user look up a person's email address, add a new name and email address, change an existing email address, and delete an exist- ing name and email address. The program should pickle the dictionary and save it to a file when the user exits the program. Each time the program starts, it should retrieve the dictionary from the file and unpickle it. 9. Blackjack Simulation of Previously in this chapter you saw the card_dealer.py program that simulates cards being dealt from a deck. Enhance the program so it simulates a simplified version of the Blackjack between two virtual players. The cards have the following values: game • Numeric cards are assigned the value they have printed on them. For example, the value of the 5 of diamonds is 5.
Transcribed Image Text:1904 or 1994. There are thrics in the file indicating this.) in that reads this file and creates a dictionary in which the keys are the names Jelles was not played Write a program of the teams, and each key's associated value is the number of times the team has won the World Series. The program should also create a dictionary in which the keys are the years, and each key's associated value is the name of the team that won that year. The program should prompt the user for a year in the range of 1903 through 2009. It should then display the name of the team that won the World Series that year, and the number of times that team has won the World Series. 8. Name and Email Addresses Write a program that keeps names and email addresses in a dictionary as key-value pairs. The program should display a menu that lets the user look up a person's email address, add a new name and email address, change an existing email address, and delete an exist- ing name and email address. The program should pickle the dictionary and save it to a file when the user exits the program. Each time the program starts, it should retrieve the dictionary from the file and unpickle it. 9. Blackjack Simulation of Previously in this chapter you saw the card_dealer.py program that simulates cards being dealt from a deck. Enhance the program so it simulates a simplified version of the Blackjack between two virtual players. The cards have the following values: game • Numeric cards are assigned the value they have printed on them. For example, the value of the 5 of diamonds is 5.
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