Due

Sunday

Deliverables

There is one deliverable for this assignment

• hw7.py

Specification

• random_number_file_create
• lines_print
• lines_count
• total_numbers_in_file

random_number_file_create

    def random_number_file_create(min, max, filename, entries):

lines_print

    def lines_print(filename):

lines_count

    def lines_count(filename):

total_numbers_in_file

    def total_numbers_in_file(filename):

Suggestions

1. Create the file hw7.py.
   Import the random module.
   Create the header for each of the functions.
   Each function needs a body or you will get an error when you run it.
   For each of these functions write the special Python statement pass.
   This statement does nothing but it will not cause an error when run.
   Run the script and fix any errors you find.
2. Remove the pass statement from random_number_file_create.
   Replace it with a statement that creates a file object for writing for the filename given by the parameter filename.
   Add the following function call to the bottom of the file

   random_number_file_create(50, 100, 'numbers.txt', 20)

   Run the script and fix any errors you find.
3. Add a for loop to random_number_file_create that will run for the number of times specified by the parameter entries.
   Inside the loop print the loop variable.
   Run the script and fix any errors you find.
4. Inside the for loop, remove the statement that prints the loop variable.
   Replace this statement with one that creates a random integer between min and max and assigns it to a variable.
   Add a statement to print this variable.
   Run the script and fix any errors you find.
5. Inside the for loop, replace the statement that prints the loop variable with one that writes this value to the file.
   Remember to turn the value into a string and to follow it with the linefeed character \n.
   Run the script, and run cat on the file numbers.txt.
   Fix any errors you find.
6. Replace the pass statement in lines_print with a statement that creates a file object for reading on the filename given by the parameter filename.
   Use a for loop to print the lines in the file. Remove the call to random_number_file_create that you entered earlier.
   Add the first 5 lines of the test code to the bottom of the file. Run the script and fix any errors you find.
7. Replace the pass statement in lines_count with a statement that creates a file object for reading on the filename given by the parameter filename.
   Set a accumulator variable to 0. Write a loop that loops through the lines in the file.
   Do not print the lines but increment the accumulator for each line in the file.
   Return the accumulator value.
   Add the 6th and 7th lines in the test code to the bottom of the file.
   Run the script and fix any errors you find.
8. Replace the pass statement in total_numbers_in_file with a statement that creates a file object for reading on the filename given by the parameter filename.
   Set a accumulator variable to 0.
   Write a loop that loops through the lines in the file.
   Inside the loop, convert each line into an integer and add it to the accumulator. Return the accumulator value.
   Add the remainder of the test code.
   Run the script and fix any errors you find.

Test Code

FILENAME = "numbers.txt"
random.seed(83)
random_number_file_create(50, 100, FILENAME, 20)
lines_print(FILENAME)
print()
entries = lines_count(FILENAME)
total   = total_numbers_in_file(FILENAME)
average = round(total/entries)
print("Entries:", entries)
print("Total:", total)
print("Average:", average)

Output

81
79
55
58
74
52
53
91
63
62
61
69
55
53
76
59
72
69
85
62

Entries: 20
Total: 1329
Average: 66