asyncio.BaseTransport

class asyncio.BaseTransport

Base class for transports.

close(self)

Close the transport. If the transport has a buffer for outgoing data, buffered data will be flushed asynchronously. No more data will be received. After all buffered data is flushed, the protocol’s connection_lost() method will be called with None as its argument.

is_closing(self)

Return True if the transport is closing or is closed.

New in version 3.5.1.

get_extra_info(name, default=None)

Return optional transport information. name is a string representing the piece of transport-specific information to get, default is the value to return if the information doesn’t exist.

This method allows transport implementations to easily expose channel-specific information.

• socket:
  • 'peername': the remote address to which the socket is connected, result of socket.socket.getpeername() (None on error)
  • 'socket': socket.socket instance
  • 'sockname': the socket’s own address, result of socket.socket.getsockname()
• SSL socket:
  • 'compression': the compression algorithm being used as a string, or None if the connection isn’t compressed; result of ssl.SSLSocket.compression()
  • 'cipher': a three-value tuple containing the name of the cipher being used, the version of the SSL protocol that defines its use, and the number of secret bits being used; result of ssl.SSLSocket.cipher()
  • 'peercert': peer certificate; result of ssl.SSLSocket.getpeercert()
  • 'sslcontext': ssl.SSLContext instance
  • 'ssl_object': ssl.SSLObject or ssl.SSLSocket instance
• pipe:
  • 'pipe': pipe object
• subprocess:
  • 'subprocess': subprocess.Popen instance