Question

The following program creates and processes binary files containing integers. Can someone help me write a mechanism for printing the integers as a string (separated by a single white space) in numeric order (smallest to greatest) AND 10 integers per line. I've marked below where the numbers are outputted.

Here's the code:

from sys import argv
from pickle import dump
from random import randint
from pickle import load

(*'s indicate indentation)

if (argv[1] == 'c'):

****output_file = open(argv[2], 'wb')

****file_data = []

****for i in range(int(argv[3])):
******file_data.append(randint(int(argv[4]), int(argv[5])))
****dump(file_data, output_file)
****output_file.close()

****print('{} random integer values have been written to the file {}.'

**********.format(argv[3], argv[2]))
****input('Press Enter to continue ... ')

elif (argv[1] == 'p'):

****num_spaces = 1

****input_file = open(argv[2], 'rb')

****while True:
******try:
******* i = load(input_file)

******* print('\nThe maximum value from the file is {}'.format(max(i)))
******* print('The minimum value from the file is {}'.format(min(i)))

******* print('The sum of the values from the file is {}'.format(sum(i)))
******* print('The average of the values from the file is'
************* ' %.2f' % (sum(i) / len(i)))
******* print("Here are the integers from integers.dat:")
******* print('And here are all the values from the file, sorted ascending'
************* ',\n with a maximum of 10 per line, and with each value in'
************* ' {} spaces:'.format(num_spaces))

******* print(i, end=(' ' * int(num_spaces)))    #This is where the integers are printed out

******except EOFError:
********input_file.close()
********break

Answer 1

Do reach out in the comment section if you have any doubt. also a like would be highly appreciated.

This is your modified code. which is working as expected. please have a look at input-output to ensure.

 from sys import argv from pickle import dump from random import randint from pickle import load if (argv[1] == 'c'): output_file = open(argv[2], 'wb') file_data = [] for i in range(int(argv[3])): file_data.append(randint(int(argv[4]), int(argv[5]))) dump(file_data, output_file) output_file.close() print('{} random integer values have been written to the file {}'.format(argv[3], argv[2])) input('Press Enter to continue ... ') elif (argv[1] == 'p'): num_spaces = 1 input_file = open(argv[2], 'rb') while True: try: i = load(input_file) print('\nThe maximum value from the file is {}'.format(max(i))) print('The minimum value from the file is {}'.format(min(i))) print('The sum of the values from the file is {}'.format(sum(i))) print('The average of the values from the file is %.2f' % (sum(i) / len(i))) print("Here are the integers from integers.dat:") print('And here are all the values from the file, sorted ascending,\n with a maximum of 10 per line, and with each value in {} spaces:'.format(num_spaces)) for j in range(0, len(i), 10): print(*i[j:j+10]) # This is where the numbers are printed out. except EOFError: input_file.close() break 

Here is your input and output part.

(blackcat) expertname@expert:~/Desktop/exprimental$ python HomeworkLib.py c test.dat 20 1 100 20 random integer values have been written to the file test.dat Press Enter to continue ... (blackcat) expertname@expert:~/Desktop/exprimental$ python HomeworkLib.py p test.dat The maximum value from the file is 80 The minimum value from the file is 4 The sum of the values from the file is 808 The average of the values from the file is 40.40 Here are the integers from integers.dat: And here are all the values from the file, sorted ascending, with a maximum of 10 per line, and with each value in 1 spaces: 30 17 63 75 26 28 35 4 47 48 65 39 78 17 80 29 28 36 46 17