Answered: Objectives > Using file input output > Processing records Practice with exceptions Command Prompt-pyth... -MENU---- Print Address Book (1) Search Contact (2)...

Database System Concepts

7th Edition

ISBN: 9780078022159

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

Publisher: McGraw-Hill Education

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PLeae write in python

The populated contacts.txt file with at least 5 contacts

1 screenshot of executed code in command line/terminal window for the print address book option (either paste
into Word document or as an image)

1 screenshot of executed code in command line/terminal window for the search contact option (either paste into
Word document or as an image)

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Transcribed Image Text:Objectives > Using file input/output > Processing records > Practice with exceptions Lab 4 Command Prompt-pyth... -MENU-- Print Address Book (1) Search Contact (2) Add new Contact (3) Delete Contact (4) Quit (5) Enter your choice > PrintAddress Book ➤ fSearch Contact >fAddContact < Problem Create a program (addressbook.py) that will manage an individual's address book. The program should allow a user to add new contacts, print the entire address book, search for a contact, delete a contact, and exit the program. These features should work as follows: Part 1: Create a function named Menu to display the menu to the user that contains all the above options using numbers from 1 to 5 (see output above). In function fMenu, validate the user input. If validation fails, display a message to the user and display the menu again. If validation is successful, return the user selected choice value from the menu. Create the following functions and simply display the function name within each function (just for testing the menu in this part): >Delete Contact Create function main which is used to orchestrate the entire program. In main, call function fMenu and store the returned value in variable choice. Test the variable choice for its value and then call the corresponding function (which will print the function name, for now). For the exit option, ask the user whether they want to continue (y/n). If they would like to continue, then display the menu and get input from the user. If not, exit the program. Validate the user input, and if the input is not y or n then ask the user again whether they want to continue. Test the functionality in this part before continuing. Part 2: Remove the print statements from the individual functions. Add the following functionality to each function: Add new contact: For this option, get the name, street address, and city state zipcode (one line), from the user. Write add them to a file contacts.txt. Write out the file such that all the information about an individual is on separate lines. For example, the name "Mickey" and address "DisneyLand" should be on separate lines rather than on the same line.

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Transcribed Image Text:Print the Address Book: For this option, print all the contents of the address book. Each record should be separated by a line of hyphens (see output) Search for a contact: For this option, ask the user for the name of the contact who they are looking for. Based on the name, look for that individual in the file one line Mary at a time and, if they are found, display all the information for that individual. If the Almaden ave San Jose, CA 90740 individual is not found, then display a message to the user saying "Contact [name] not found" where [name] is the name that the user searched for. Delete a contact: For this option, ask the user for the name of the contact who they want to delete from the address book. There are two different methods: 23 Command Prompt-pyth... enter your choice 1 Michael 1234 Test Ave San Francisco, CA 94105 Suzan 45 Hope St seryville, CA 94512 Do you want to continue) (y/n). > Write the all contacts except the one to be deleted to a new file, then delete the contacts.txt file, and rename the new file back to contacts.txt. > Store the all contacts except the one to be deleted in a variable and then overwrite the file contacts.txt with the content of the variable Test this part using all menu options. Populate the contacts file with at least 5 contacts. Part 3: You may have already noticed that the file contacts is opened in multiple functions. Create a new function named fFileOpen having the filename and the mode as parameters. Use the open method using the two parameters to open the file and assign it into a variable. Return the variable back to the calling program. Use exception handling to test for the condition when the file is not found. Replace the open method in all the functions with the function call fFileOpen.

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