website_blocker.pyw

import time
from datetime import datetime as dt

hosts_temp='hosts'

#hosts_path='C:\Windows\System32\drivers\etc\hosts'
redirect="127.0.0.1"
website_list=["www.facebook.com","facebook.com","fb.com","www.upgovernor.gov.in","http://upgovernor.gov.in/","upgovernor.gov.in","www.twitter.com"]

while True:
    if dt(dt.now().year,dt.now().month,dt.now().day,16) < dt.now() < dt(dt.now().year,dt.now().month,dt.now().day,23):
        print("Working Hours....")
        with open(hosts_temp,'r+') as file:
            content=file.read()
            for website in website_list:
                if website in content:
                    pass
                else:
                    file.write(redirect+' '+ website+ '\n')
    else:
        with open(hosts_temp,'r+') as file:
            content=file.readlines()
            file.seek(0)
            for line in content:
                    if not any(website in line for website in website_list):
                        file.write(line)
            file.truncate()

        print("Fun Hours...")
    time.sleep(5)