#function read file and display report def displayAverage(fileName): #open the file infile = open(fileName, "r") #variable declaration and initialization total = 0 count = 0 #read file for num in infile: total = total + float(num) count = count + 1 #close the file infile.close() #calculate average average = total / count #display the result print("Average {:.1f}".format(average)) #method calling displayAverage("numbers.txt")

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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#function read file and display report
def displayAverage(fileName):
#open the file
infile = open(fileName, "r")

#variable declaration and initialization
total = 0
count = 0

#read file
for num in infile:
total = total + float(num)
count = count + 1

#close the file
infile.close()

#calculate average
average = total / count

#display the result
print("Average {:.1f}".format(average))

#method calling
displayAverage("numbers.txt")

 

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