python-ldap3.py

        u = urlparse(url)
        if u.scheme == 'ldaps':
            use_ssl = True
        else:
            use_ssl = False

        if ":" in u.hostname:
            u.hostname = u.hostname.split(":")[0]
        if dn is None:
            import netrc
            netrc_config = netrc.netrc()
            for h in netrc_config.hosts:
                if h == u.hostname:
                    dn, account, secret = netrc_config.authenticators(h)
                    break

        self.server = ldap3.Server(host=u.hostname, port=u.port, use_ssl=use_ssl)
        self.conn = ldap3.Connection(self.server,
                                     auto_bind = True,
                                     client_strategy = ldap3.STRATEGY_SYNC,
                                     user=dn,
                                     password=secret,
                                     authentication=ldap3.AUTH_SIMPLE)