Prothon Prototypes vs Python Classes

Mark Hahn mark at
Mon Mar 29 23:42:25 CEST 2004

I would greatly appreciate it if you could take a peek at my stackless
implementation and give me a grade :)

I don't know if you remember me, but I pissed you off in a rude posting I
made in a reply to you months ago (I apologize once again).  I was trying to
pickle a complicated graph of objects and getting recursions limit errors in
Python.  You were very helpfully telling me how to get around the problem in
a long message and I replied curtly and rudely that Python was broken and
I'd rather write something from scratch than try to use broken tools (it was
a bad day).

To make a long story short, that was the straw that broke the camel's back
and caused me to start work on Prothon.  I had been daydreaming about an
extrememly simple but powerful language with just a pile of lockable objects
for some time.  The fact that is uses Python syntax is secondary and only
because I like the syntax.  My real love is the internal object structure,
threading,  and interpreter.

----- Original Message ----- 
From: "Christian Tismer" <tismer at>
To: "Mark Hahn" <mark at>
Cc: <python-list at>
Sent: Monday, March 29, 2004 4:55 AM
Subject: Re: Prothon Prototypes vs Python Classes

> Mark Hahn wrote:
> > Mutability is an interesting area.  I just added an unmutable bit in the
> > Prothon internal object which makes the read_lock call a no-op and
causes a
> > write_lock call to throw an exception.  This makes the object
> > write-protected and makes the lock code run much faster.
> >
> > I did this for internal performance reasons, but after doing it I
> > that extending it to the Ruby freeze() level would be really good.
> > the freezing in somehow to the bang! methods is also in interesting area
> > research.
> > Mark Hahn (Prothon Author)
> >
> > P.S. If this belongs in the Prothon list instead of Python, let us know.
> Allthough I'm a known Python-addict, I find this very interesting.
> Being prototyped instead of class based was one of the features
> of JavaScript, which were concidered "deficiencies". Well, I didn't
> share this so much, there are many other much worse problems.
> I'm eager to learn how a real language develops if it consequently
> builds upon prototypes. Especially this one, since it is stackless
> by nature. :-)
> ciao - chris
> -- 
> Christian Tismer             :^)   <mailto:tismer at>
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