Question

I’ve been reading this:
http://lkubuntu.wordpress.com/2012/10/02/writing-a-python-plugin-api/

I’m trying to do something like Minecraft help system.
Let’s say I have my main module, and the help commands are:

help
test1
test2

And then, after loading the plugin, I would have the same set, plus the ones that the plugin has available.
Also, when processing the commands, how can I do, to distinguish the ones from internal program to the ones from plugins?!
So far, I’ve come up with this:

import imp
import os

PluginFolder = "./plugins"
MainModule = "__init__"

def getPlugins():
    plugins = []
    possibleplugins = os.listdir(PluginFolder)
    for i in possibleplugins:
        location = os.path.join(PluginFolder,i)
        if not os.path.isdir(location) or not MainModule + ".py" in os.listdir(location):
            continue
        info = imp.find_module(MainModule, [location])
        plugins.append({"name":i, "info": info})
    return plugins

def loadPlugin(plugin):
    return imp.load_module(MainModule, *plugin["info"])

disponiveis = []
for i in getPlugins():
    print("Loading plugin "+ i["name"])
    plugin = loadPlugin(i)
    plugin.run()
    disponiveis.append(i["name"])

while 1:
    foo = raw_input(":")
    if foo == 'quit':
        break;
    elif foo in disponiveis:
        print "ok"
    else:
        continue

Not much from the original example 😐
My BIG problem is that cycle where it loads all the plugins.
Currently I have 2 plugins, hello and testing. How can I do to have something like this:

send_command(plugin_name, action)

Also, the if/elif is kinda lame… Available commands should come from the plugin.
Using a dict maybe?!?! And then when loading the plugin, it would add the aditional commands to that dict ?!?!

Answer 1

Thanks for the answers and help, but I shouldn’t try to re-invent the wheel.
This framework is great:
http://yapsy.sourceforge.net/

Works like a charm.
(It did help to learn more about Python)