(self, host, port=None, scheme='http', pool_kwargs=None)
return self.connection_from_context(request_context)
Get a :class:`ConnectionPool` based on the host, port, and scheme.

        If ``port`` isn't given, it will be derived from the ``scheme`` using
        ``urllib3.connectionpool.port_by_scheme``. If ``pool_kwargs`` is
        provided, it is merged with the instance's ``connection_pool_kw``
        variable and used to create the new connection pool, if one is
        needed.
Get a :class:`ConnectionPool` based on the host, port, and scheme.
Get a : class : ConnectionPool based on the host port and scheme .
def connection_from_host(self, host, port=None, scheme='http', pool_kwargs=None):
        """
        Get a :class:`ConnectionPool` based on the host, port, and scheme.

        If ``port`` isn't given, it will be derived from the ``scheme`` using
        ``urllib3.connectionpool.port_by_scheme``. If ``pool_kwargs`` is
        provided, it is merged with the instance's ``connection_pool_kw``
        variable and used to create the new connection pool, if one is
        needed.
        """

        if not host:
            raise LocationValueError("No host specified.")

        request_context = self._merge_pool_kwargs(pool_kwargs)
        request_context['scheme'] = scheme or 'http'
        if not port:
            port = port_by_scheme.get(request_context['scheme'].lower(), 80)
        request_context['port'] = port
        request_context['host'] = host

        return self.connection_from_context(request_context)
def connection_from_host ( self , host , port = None , scheme = 'http' , pool_kwargs = None ) : if not host : raise LocationValueError ( "No host specified." ) request_context = self . _merge_pool_kwargs ( pool_kwargs ) request_context [ 'scheme' ] = scheme or 'http' if not port : port = port_by_scheme . get ( request_context [ 'scheme' ] . lower ( ) , 80 ) request_context [ 'port' ] = port request_context [ 'host' ] = host return self . connection_from_context ( request_context )