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Python in a Nutshell
book

Python in a Nutshell

by Alex Martelli
March 2003
Intermediate to advanced
656 pages
39h 30m
English
O'Reilly Media, Inc.
Content preview from Python in a Nutshell

Name

loop

Synopsis

loop( )

Implements the asynchronous event loop, dispatching all network events to previously instantiated dispatcher objects. loop terminates when all dispatcher objects (i.e., all communication channels) are closed.

Module asyncore also supplies class dispatcher, which supplies all methods of socket objects, plus specific methods for event-driven programming, with names starting with 'handle_‘. Your class X subclasses dispatcher and overrides the handle_ methods for all events you need to handle. To initialize an instance d of dispatcher, you can pass an argument s, an already connected socket object. Otherwise, you must call:

                           d.create_socket(socket.AF_INET,socket.SOCK_STREAM)

and then call on d either connect, to connect to a server, or bind and listen, to have d itself be a server. The most frequently used methods of an instance d of a subclass X of dispatcher are the following.

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Publisher Resources

ISBN: 0596001886Supplemental ContentCatalog PageErrata