They are not all exactly the same. "self", in Python - and thus in Python scripts and external methods - is a placeholder, not a function. You can call it anything, like this: class magicClass: def __init__(this_thing_here): # Normally people write __init__(self), but # that is just a convention Outside of the class definition, "self" is not a keyword and has no intrinsic meaning in Python, although Zope could perhaps add its own meaning if it wanted to. Within a class definition, you can call it anything, as long as you are consistent within the class definition. this(), on the other hand, is a DTML method call that returns a reference to the called object. "context", in a python script, refers to the namespace in effect (that is, the dictionaries that define the attributes and methods available and in scope). I don't know the eact meaning of "here" on a page template. So these aren't really the same things, even if there is some similarity. [Stefan H. Holek] At 08.02.2002 15:11 +0100, c.koll@web.de wrote:

When I read the Zopebook it seemed to be quite understandable, but looking at some scripts now, I think I somehow mixed it up. What´s the difference between "this()", "self" and "context"? When do I use each one?

When writing | the Zopista uses ---------------------------------- Python Product | self External Method | self DTML | this() Python Script | context Page Template | here to refer to basically the same thing. At this point I feel like a sarcastic comment on orthogonality and such but words fail me ;-)