Question

Write a function that takes, as an argument, the name of a file, fileName . Your program should open (and read through) the file specified, and return the maximum value in the

file. Name this function maxValueInFile(fileName).

def openFile():

# Prompt for the file name

filename =input("Enter a file name: " )

# Open the file for reading

file = open(filename)

# Prompt for the target value

target =input("Enter a threshold value: ")

# Initialize the counter

counter = 0

# Now step through the file and count the matches

for element in file:

if (element== target):

counter = counter + 1

# Print the number of values in the file that equal the target value

print(str(counter) + " matches were found for target value" + str(target))

file.close()

please use simple way which i can understand, i just learn this for a week

Answer 1

number.txt file contains

4
6
7
9
1
2
5
3

code:

def maxValueInFile(fileName):

# Open the file for reading

file = open(fileName)

maximum = -99999999

#fetch each number from file and check if it is maximum

for number in file:

#convert the number to int, as we read from file it come as string

number = int(number)

#if the current number is greater than maximum store the number in maximum

if number > maximum:

maximum = number

file.close()

return maximum

print("Maximum number in file : ",maxValueInFile('number.txt'))