[FW: Re: [pypy-dev] Patches?]

Seo Sanghyeon tinuviel at fluid.sparcs.net
Wed Jun 30 14:24:36 CEST 2004

Oops, replied in private by mistake...

----- Forwarded message from tinuviel -----

To: Ben Young <ben at transversal.com>
Subject: Re: [pypy-dev] Patches?

On Wed, Jun 30, 2004 at 11:08:38AM +0100, Ben Young wrote:
> Hi,
> I have been following the pypy-dev mailing list for some time, as well as 
> maintaining a anon svn checkout of the pypy source and am really excited by 
> this project (in fact it has inspired me to write my own experimental 
> language in python along similar lines!).

Welcome to PyPy!

> I was just wondering whether the 
> project is considered stable enough to accept patches and/or bug reports from 
> people who are not directly developers (i.e me!). I have been playing with 
> getting pypy to run some of my own python programs, and although it seems to 
> get pretty close there are a couple of issues. 

PyPy is not exactly stable, but I think patches are welcome any time.

> The first is in appspace/operator.py where if you import this in the trivial 
> object space then is gives errors about modifying a dictionary while 
> iterating over it. This can be fixed by the following patch
> (patch follows)

Fixed in r5407, but in a different way. In case you don't read the commit
mailing list, here is the detail:


In short, "#ugh" part is removed altogether. It was a hack, and it was
there to make built-in function never-bound as in CPython. (See the checkin
message.) If you don't understand what that means, try this:

from operator import add
def add2(x,y): return x+y
class X: pass
X.add = add
X.add2 = add2
print X().add(2,2)
print X().add2(2,2)

CPython doesn't raise exception for X().add, but do for X().add2. That's
because built-in function operator.add is never-bound. PyPy before
commit does the same. PyPy after commit raise exception for both.

> The second is in pprint. If you do 
> >>>> import pprint
> >>>> pprint.pprint([])
> you get a massive traceback which I haven't yet quite worked out a fix for.

This seems to work in the standard object space though.


----- End forwarded message -----

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