irclib -- Internet Relay Chat (IRC) protocol client library

The home of is now:

This library is intended to encapsulate the IRC protocol at a quite
low level.  It provides an event-driven IRC client framework.  It has
a fairly thorough support for the basic IRC protocol, CTCP and DCC

In order to understand how to make an IRC client, I'm afraid you more
or less must understand the IRC specifications.  They are available


  * Python 2.2 or newer.


  * Run "python install" or copy and/or
    to an appropriate Python module directory.

The main features of the IRC client framework are:

  * Abstraction of the IRC protocol.
  * Handles multiple simultaneous IRC server connections.
  * Handles server PONGing transparently.
  * Messages to the IRC server are done by calling methods on an IRC
    connection object.
  * Messages from an IRC server triggers events, which can be caught
    by event handlers.
  * Reading from and writing to IRC server sockets are normally done
    by an internal select() loop, but the select()ing may be done by
    an external main loop.
  * Functions can be registered to execute at specified times by the
  * Decodes CTCP tagging correctly (hopefully); I haven't seen any
    other IRC client implementation that handles the CTCP
    specification subtilties.
  * A kind of simple, single-server, object-oriented IRC client class
    that dispatches events to instance methods is included.
  * DCC connection support.

Current limitations:

  * The IRC protocol shines through the abstraction a bit too much.
  * Data is not written asynchronously to the server (and DCC peers),
    i.e. the write() may block if the TCP buffers are stuffed.
  * Like most projects, documentation is lacking...

Unfortunately, this library isn't as well-documented as I would like
it to be.  I think the best way to get started is to read and
understand the example program irccat, which is included in the

The following files might be of interest:


    The library itself.  Read the code along with comments and
    docstrings to get a grip of what it does.  Use it at your own risk
    and read the source, Luke!

  * irccat

    A simple example of how to use  irccat reads text from
    stdin and writes it to a specified user or channel on an IRC

  * irccat2

    The same as above, but using the SimpleIRCClient class.

  * servermap

    Another simple example.  servermap connects to an IRC server,
    finds out what other IRC servers there are in the net and prints
    a tree-like map of their interconnections.


    An example bot that uses the SingleServerIRCBot class from  The bot enters a channel and listens for commands in
    private messages or channel traffic.  It also accepts DCC
    invitations and echos back sent DCC chat messages.

  * dccreceive

    Receives a file over DCC.

  * dccsend

    Sends a file over DCC.

NOTE: If you're running one of the examples on a unix command line, you need to escape the # symbol in the channel. For example, use \#test instead of #test.


keltus <>

Original Author:
Joel Rosdahl <>