workingwithpythonscripts

"""Make sure you are in the scripts folder"""
"""To change to this folder type cd ~/scripts """

"""This is for the network.py file"""
#!/usr/bin/env python3
import requests
import socket
localhost = socket.gethostbyname('localhost')
request = requests.get("http://www.google.com")


"""This is for the  health_checks.py file"""
#!/usr/bin/env python3
from network import *
import shutil
import psutil

def check_disk_usage(disk):
    """Verifies that there's enough free space on disk"""
    du = shutil.disk_usage(disk)


    free = du.free / du.total * 100
    return free > 20

def check_cpu_usage():
    """Verifies that there's enough unused CPU"""
    usage = psutil.cpu_percent(1)
    return usage < 75

# If there's not enough disk, or not enough CPU, print an error

if not check_disk_usage('/') or not check_cpu_usage():
    print("ERROR!")
elif check_localhost() and check_connectivity():
    print("Everything ok")
else:
    print("Network checks failed")

you have not defined check_localhost() and check_connectivity() in network.py to display the output when running health_checks.py