Write a Python program that reads from each line of an input file called grades.txt, a student id followed by the student grades in 3 exams. The program will then calculate the average of the student and save in a file called results.txt the student id followed by the calculated average. For example, if the grades.txt contains sii1 60 60 90 S222 89.5 90 89 S333 42 50 43 The file results.txt will contain sii1: 70.00 S222: 89.50 S333: 45.00

Write a Python program that reads from each line of an input file called grades.txt, a student id followed by the student grades in 3 exams. The program will then calculate the average of the student and save in a file called results.txt the student id followed by the calculated average. For example, if the grades.txt contains sii1 60 60 90 S222 89.5 90 89 S333 42 50 43 The file results.txt will contain sii1: 70.00 S222: 89.50 S333: 45.00

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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Constants and variables are widely used in mathematical equations and expressions. They are also commonly found in the domain of programming, where each language has its own way to differentiate between a constant and a variable. Since they have all sorts of applications, knowing their differences is a good place to start.

Question

Exercise 2: Name your program Lab12_ex1_Id.py
Write a Python program that reads from each line of an input file called grades.txt, a student id followed
by the student grades in 3 exams. The program will then calculate the average of the student and save in
a file called results.txt the student id followed by the calculated average. For example, if the grades.txt
contains
siii 60 60 90
S222 89.5 90 89
S333 42 50 43
The file results.txt will contain
siii: 70.00
S222: 89.50
S333: 45.00

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