Read_file = open ('numbers. txt', 'r')

file_numbers = read_file. read ()

read_file. close ()

list_values = file_numbers. split ()

list_length = len (list_values)

for i in range (list_length):

list_values[i] = float (list_values[i])

List_sum = sum (list_values)

Average_value = (List_sum) / list_length

print (Average_value)

Problem:

Modify the program you wrote for Chapter 6 Exercise 6 so it handles the following

exceptions:

• It should handle IOError exceptions that are raised when the file is opened

and data is read from it by printing "Trouble opening file. Try again." and

not executing any more of the code.

• It should handle any ValueError exceptions that are raised when the items

that are read from the file are converted to a number by printing "File must have

only numbers. Try again." and not executing any more of the code.

Question

Computers & Technology

Ashlyn Olson

10 March, 19:12

Read_file = open ('numbers. txt', 'r')

file_numbers = read_file. read ()

read_file. close ()

list_values = file_numbers. split ()

list_length = len (list_values)

for i in range (list_length):

list_values[i] = float (list_values[i])

List_sum = sum (list_values)

Average_value = (List_sum) / list_length

print (Average_value)

Problem:

Modify the program you wrote for Chapter 6 Exercise 6 so it handles the following

exceptions:

• It should handle IOError exceptions that are raised when the file is opened

and data is read from it by printing "Trouble opening file. Try again." and

not executing any more of the code.

• It should handle any ValueError exceptions that are raised when the items

that are read from the file are converted to a number by printing "File must have

only numbers. Try again." and not executing any more of the code.

+4

Answers (1)

Know the Answer?

Emery Riddle · Answer 1

To do that, use exception handling

Explanation:

Try:

read_file = open ('numbers. txt', 'r')

file_numbers = read_file. read ()

except IOError exceptions:

print ("Trouble opening file. Try again")

read_file. close ()

list_values = file_numbers. split ()

list_length = len (list_values)

for i in range (list_length):

list_values[i] = float (list_values[i])

except ValueError:

print ("File must have only numbers. Try again.")

List_sum = sum (list_values)

Average_value = (List_sum) / list_length

print (Average_value)