Lupa : Lua from Python !

Hi !

I was testing to invoke lua from python, to test some piece of codes. So I started to create a binding after (;() but I found LUPA !

An archive and installation is described in the web page. You can test it by importing the module :

>>> import lupa
>>> x = lupa.LuaRuntime()
>>> x.eval( "print \"hello\" ")
hello
>>>

I would like to do object-oriented programming directly in my python code with lupa, but I failed (maybe I'm wrong). So I did it a simple wrapper in python :

lua_code_init = '''
    TEST = {}
    function TEST:new()
       o = {}
       setmetatable(o, self)
       self.__index = self
       return o
    end
                                                                                                                                                                                                                              
    function TEST:affect(v)
       print("affect |----> " .. v)
       self.value = v
    end

    function TEST:OP(arg)
       for item in python.iter(arg) do
          print(item)
       end
    end

    return TEST
  '''

class LuaFunc :
 def __init__(self, function, obj) :
    self.__function = function
    self.__obj = obj

 def __call__(self, *args, **kwargs):
    nargs = [self.__obj]
    nargs.extend(args)
    return apply(self.__function, nargs, kwargs)

class LuaObject :
 def __init__(self, obj) :
    self.__obj = obj

    self.__dict__[ "affect" ] = LuaFunc( self.__obj.affect, self.__obj )
    self.__dict__[ "OP" ] = LuaFunc( self.__obj.OP, self.__obj )

class LuaClass :
 def __init__(self, lua, init) :
    self.__lua = lua
    self.__class = self.__lua.execute( init )

    self.__obj = LuaObject( self.__class.new(self.__class) )

 def get_obj(self) :
    return self.__obj

 def __getattr__(self, *args, **kwargs) :
    return getattr(self.__obj, *args)

So now I can do stuff like that :

lua = lupa.LuaRuntime()
o = LuaClass(lua, lua_code_init)
o.affect( "toto" )
o.OP( [ 5, 6, "ioo" ] )

Maybe it's possible to have a better code, if you know, please post a comment.

By the way, phrack 67 is OUT !