The fastest github user checker. you need a users list

GitHub user checker.py

import requests

head = {
'accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9',
'accept-encoding': 'gzip, deflate, br',
'accept-language': 'en-US,en;q=0.9',
'cookie': '_device_id=d19a3adf483dc8e7f363b2ba85577c74; _octo=GH1.1.336579755.1638284782; has_recent_activity=1; user_session=GBE2KZz0JLLmNhOYPgPHDaNdl2l_8hOuyvWFhPt84QbL24sK; __Host-user_session_same_site=GBE2KZz0JLLmNhOYPgPHDaNdl2l_8hOuyvWFhPt84QbL24sK; logged_in=yes; dotcom_user=nawar222; color_mode=%7B%22color_mode%22%3A%22auto%22%2C%22light_theme%22%3A%7B%22name%22%3A%22light%22%2C%22color_mode%22%3A%22light%22%7D%2C%22dark_theme%22%3A%7B%22name%22%3A%22dark%22%2C%22color_mode%22%3A%22dark%22%7D%7D; tz=Europe%2FBerlin; _gh_sess=FsONnZEWPaJ5U%2B0M4xCIN%2FuE73YFE92v2lq8UY%2B%2BFw0X1LDKGQX2zPge9cXfO%2FNUD7RSb9MtLRMrwW7dblrDv0NcC7P%2BTzZWgUOgqFZ0PNYxFOArrXU5my%2BWLGrtkKwTzAbJtHXJ4Cdl7bfyI6wFrbsgmD%2FkNlogARyHkyXjU1I%3D--sIXeCKS9ycMvLx0h--SMmj5fsKRk3WLc0quoy16Q%3D%3D',
'sec-ch-ua': '" Not;A Brand";v="99", "Microsoft Edge";v="97", "Chromium";v="97"',
'sec-ch-ua-mobile': '?0',
'sec-ch-ua-platform': '"Windows"',
'sec-fetch-dest': 'document',
'sec-fetch-mode': 'navigate',
'sec-fetch-site': 'none',
'sec-fetch-user': '?1',
'upgrade-insecure-requests': '1',
'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36 Edg/97.0.1072.62',
}

iNaWaR = 'user.txt'
file = open(iNaWaR, 'r')

while True:
        github = file.readline().split('\n')[0]
        if github == '':
            break
        url = f'https://github.com/{github}'
        rq = requests.get(url, headers=head)
        if rq.status_code == 404:
            print(f'Available -->> {github}')
            with open('Available-USERS.txt', 'a') as x:
                tl = 'By iNaWaR -->  '
                x.write(tl + github + '\n')
        elif rq.status_code == 200:
            print(f'Taken -->> {github}')
        else:
            print(f'user can not be used in github!! {github}')
        # by iNaWaR