First things first. Thanks for replies. I am still crunching..

As I already received a similar question about if the topic is appropriate
for PyPy in private email from other person, so I repeat my reply below
as-is. Mind you the the discussion here is not "debate". When I say "I
expect" - I of course mention my own problem of understanding, but the
answer I need is not what should I do, but why it works differently? I am
not familiar with exec* calls in Unix, but for me the analogy is
misleading, and something like "LXC for Python code" may be a better
analogy, because I don't want to replace the current process. What I am
interested to know is what kind of code isolation execfile() supports and
why it doesn't do full isolation by default? It looks like this is
answered, but I need time to validate it.

On Wed, Mar 27, 2013 at 1:00 AM, Armin Rigo <[email protected]> wrote:

> Hi all,
>
> Could you please move this debate somewhere else?  pypy-dev is not the
> appropriate place where to discuss the Python language in general (but
> topics about differences between CPython and PyPy are fine of course).
>  There is already for example
> http://mail.python.org/mailman/listinfo/python-list .
>


It looks like python@ is more appropriate for basic questions about the
usage of the existing language. My question is about internal mechanism
that supports language design. Not only asking about existing behavior, but
also about why this behavior can not be changed. I thought that people who
are writing Python in Python are more skilled to answer such questions. In
the end, I understood that PyPy project was created so that people who
can't read C could still understand and experiment with their own language,
no?

-- 
anatoly t.
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