Unable to edit a local hosts file with python

I am trying to build a programme that would block certain websites in a specific working time frame. I am first testing the modifications on a hosts file (located here C:\Users\Alberto\Documents\Atom\web-blocker) that I have copied in the same file as my programme, before modifying the main hosts file. However, even though my script allows me to properly print out the message while I am in working hours or when I am not, the problem is that the websites list are not printed out in the local hosts file. Also, I run the programme as an administrator.

Here is my code:

import time
from datetime import datetime as dt

hosts_temp="hosts"
hosts_path=r"C:\Windows\System32\drivers\etc\hosts"
redirect="127.0.0.1"
website_list=["www.facebook.com","facebook.com","youtube.com","www.youtube.com"]


while True:
    if dt(dt.now().year,dt.now().month,dt.now().day,6) < dt.now() < 
dt(dt.now().year,dt.now().month,dt.now().day,19):
        print("Working hours, get back to work you future data scientist!")
        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)

What am I missing in order to modify the local hosts file? Thank you in advance for your help.