Tasks:

Task 1: Create and test the openFileReadRobust() function to open file (for reading) whose name is provided from the standard input (keyboard) the name is requested until it is correct

Task 2: Create and test the openFileWriteRobust () function to open file (for writing) whose name is provided from the standard input (keyboard) the name is requested until is correct

Task 3: Extend the program to count number of characters, words and lines in a file by including openFileReadRobust() and openFileWriteRobust () functions

Task 4: Create simple tallying program to input sequence of integers (each integer 0-100) from a file (name to be entered from the keyboard using openFileReadRobust() function, compute the tally sheet discarding all bad data. Display the discarded bad data on the screen.

Task 5: Write the content of the tally sheet (write only non-zero counts of numbers numbers that are in the input file) to a standard output (the shell window).

Task 6: Extend the program to write the content of the tally sheet (write only non-zero counts of numbers numbers that are in the input file) to a file (name to be entered from the keyboard). Display the content of the file on the screen.

Assume the content of the file myData1.txt:

5

100

111

OK

55

5

55

5

The interaction of your program should be displayed in the Shell window similarly as shown below:

Task 1

What is the input file name?

myData.txt

This file cannot be opened

What is the input file name?

myData1.txt

Task 2

What is the output file name?

myResults1.txt

Task 3

The number of characters is: 15

The number of words is: 8

The number of lines is: 8

Task 4

Discarded bad data: 111, OK

Task 5

The tally sheet based on your input file is:

Number of 5s: 3

Number of 55s: 2

Number of 100s: 1

Task 6

The tally sheet written to the file: myResults1.txt

Copy of the content of the file myResults1.txt is:

Number of 5s: 3

Number of 55s: 2

Number of 100s: 1

Here is what I have so far. I managed to get the first 3 tasks. I need help with the last 3 tasks.

#Task 1

def openFileReadRobust():

fileObjectData = None

while fileObjectData is None:

filename = input('What is the input file name? ')

try:

fileObjectData = open(filename)

except IOError:

print ('This file could not be opened', filename)

return fileObjectData

#Task 2

def openFileWriteRobust(defaultName):

writable = None

while not writable:

filename = input('What is the output file name?')

if not filename:

filename = defaultName

try:

writable = open(filename, 'w')

except IOError:

print ('Sorry, unable to write to file', filename)

return writable

def main():

fileObjectData = openFileReadRobust()

contents = fileObjectData.read()

fileObjectData.close()

print (contents)

print()

fileObjectR = openFileWriteRobust('')

fileObjectR.write('')

fileObjectR.close()

fileObjectRCheck = open('myResults1.txt')

contents = fileObjectRCheck.read()

fileObjectRCheck.close()

print (' ',contents)

print()

#Task 3

fileObjectData = open('myData1.txt')

content = fileObjectData.read()

fileObjectData.close()

chars = len(content)

words = len(content.split())

lines = len(content.split(' '))

print('The number of characters is: ',chars)

print('The number of words is: ',words)

print('The number of lines is: ',lines)

main()