Weechat cowsay plugin

cowsay.py

import os
import subprocess
import weechat

rawCowfiles = subprocess.check_output("cowsay -l", shell=True)
cowfiles = [f for line in filter(lambda line: not line.startswith("Cow files in"), rawCowfiles.splitlines()) for f in line.split()]
ordCowfiles = "||".join(cowfiles)

weechat.prnt("", "Available cowfiles: " + str(cowfiles))

def cowsay(data, buffer, args):
    command = "fortune | cowsay"
    if args is not None and len(args) != 0:
        words = args.split()
        arg = words[0]
        if arg in cowfiles:
            command += " -f " + arg
    message = subprocess.check_output(command, shell=True)
    weechat.command(weechat.current_buffer(), message)
    return weechat.WEECHAT_RC_OK

weechat.register("cowsay", "DanZimm", "0.1", "", "Send a fortune cowsay", "", "")
weechat.hook_command("cowsay", "Send `fortune | cowsay` to the current buffer", "[cowfile]", "cowfile - the cowfile to use to display the cow. optional", ordCowfiles, "cowsay", "")