ss Average: Reading Student Records from a CSV File) Use Python Use the csv module to read the grades.csv file from the previous exerci

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
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(Class Average: Reading Student Records from a CSV File) Use Python

Use the csv module to read the grades.csv file from the previous exercise (exercise 9.3).

Display the data in tabular format, including an additional column showing each student’s average to the right of that student’s three exam grades and an additional row showing the class average on each exam below that exam’s column.

This is exercise 9.3

# Importing csv module
import csv

# empty list to store data
data = []
columns = ["firstname", "lastname", "grade1", "grade2", "grade3"]
filename = "grades.csv"

for i in range(3):
firstname = input("Enter First Name : ")
lastname = input("Enter Last Name : ")
grade1 = float(input("Enter Grade 1 : "))
grade2 = float(input("Enter Grade 2 : "))
grade3 = float(input("Enter Grade 3 : "))
data.append([firstname, lastname, grade1, grade2, grade3])
print()

# write data and columns as csv file
with open(filename, 'w') as csvfile:
# creating a csv writer object
csvwriter = csv.writer(csvfile)

# writing the columns
csvwriter.writerow(columns)

# writing the each row to the data
csvwriter.writerows(data)

print("CSV file {} has been created successfully!!".format(filename))

 

First
Bob
Sue
Last
Jones
Smith
Doe
Karen
Test Averages
Test1 Test2 Test3 Average
81.67
88.00
87.67
86
99
83
89.33
75
84
77
88
88
92
80.00 80.00
Transcribed Image Text:First Bob Sue Last Jones Smith Doe Karen Test Averages Test1 Test2 Test3 Average 81.67 88.00 87.67 86 99 83 89.33 75 84 77 88 88 92 80.00 80.00
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