Deliverables

There is one deliverable for this assignment

• hw6.py

Make sure the script obeys all the rules in Homework Script Rules

Specification

The script must have 3 functions:

• get_command_line_arguments
• print_path_dirs
• executable_file_count

get_command_line_arguments

This function must have the following header:

def get_command_line_arguments(arg_number):

This function is used to get a certain number of command line arguments, specified by the parameter arg_number and return them as a tuple. If the user does not enter the proper number of the command line arguments, the code should print a usage message and exit the script. This message must have the following format

Usage: SCRIPT_NAME ARGUMENT_1 ARGUMENT_2

If the proper number of command line arguments has been provided, the function should return their values in a tuple.

print_path_dirs

This function must have the following header:

def get_command_line_arguments:

This function should print the pathnames of directories listed in the Unix PATH variable. Each pathname should be on a separate line.

executable_file_count

This function must have the following header:

def executable_file_count(dir):

This function should count the number of files with a .py extension and return that value.

Script for this assignment

Open an a text editor and create the file hw6.py.

You can use the editor built into IDLE or a program like Sublime.

Test Code

Your hw6.py file must contain the following test code at the bottom of the file:

get_command_line_arguments(2) agr1, arg2 = get_command_line_arguments(2) print(agr1, arg2) print() print_path_dirs() print() dir = "/home/ghoffman/course_files/it117_files" py_count = executable_file_count(dir) print("Python files", py_count)