Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Python programming language

  1. Write a program that asks the user for a number. Write the number to a file called total.txt. Then ask the user for a second number. Write the new number on line 2 with the total for both numbers next to it separated by a comma. Then ask the user for a third number and do the same. Keep asking for numbers until the person puts in a zero to terminate the program. Close the file. Be sure to use at least 2 functions [main() and total_numbers(number, total)]. Put all inputs and outputs into the main function, with all calculations into the total_numbers function.

Give me a number: 13

Give me another number: 14

14 + 13 = 27

Give me another number: 3

3 + 27 = 30

Give me another number: 4

4 + 30 = 34

Give me another number (0 for quit): 0

Your total is 34.

  1. Write a program that displays the lines from the total.txt file in the following output. Use a try catch phrase to check for errors. Use only one function for this portion [main()].

13

14, 27

3, 30

4, 34

  1. Write a program that deletes all the contents in the total.txt file and replaces it with a "". Use a try catch phrase to check for errors. Output the file results. Use two functions [main() and remove_data()].
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