Can you help me make the functions work with the 3 imported modules only?

I need to write the code inside each functions to make it work. The instructions are given in quotations ("") under each function (def). The graph will be in "[=========== ]" format. Each equal sign ( = ) means 5%.

Thank you!

import os,sys,subprocess

def call_df():

"Use this to call the df command and return a list of output" pass # replace pass with your code

def call_free():

"Use this to call the free command and return a list of output" pass # replace pass with your code

def call_hostname():

"Use this to call the hostname command and return a string" pass # replace pass with your code

def call_uptime():

"Use this to call the uptime command and return a string" pass # replace pass with your code

def percent_to_graph(percent):

"draw a graph to represent a given percentage" return_string = "[========== ]" # 50% as example return return_string #code

def print_percent_line(name, percent):

"use this to print your lines in order pass checks" string = '{:<12}{:>22} {:<3}%'.format(name, percent_to_graph(percent), percent) print(string)

def print_horizontal_line(length=40, char='-'):

"prints a horizontal line " print(char*length)

if __name__ == "__main__":

pass # replace with your code