asynchat - Auxiliary Classes

.. class:: fifo(list=None)

A :class:`fifo` holding data which has been pushed by the application but

not yet popped for writing to the channel. A :class:`fifo` is a list used

to hold data and/or producers until they are required. If the *list*

argument is provided then it should contain producers or data items to be

written to the channel.

.. method:: is_empty()

Returns ``True`` if and only if the fifo is empty.

.. method:: first()

Returns the least-recently :meth:`push`\ ed item from the fifo.

.. method:: push(data)

Adds the given data (which may be a string or a producer object) to the

producer fifo.

.. method:: pop()

If the fifo is not empty, returns ``True, first()``, deleting the popped

item. Returns ``False, None`` for an empty fifo.