python sandbox

[Just]

In article <b0ougt$111ko7$1 at hades.rz.uni-sb.de>,
 Uwe Schmitt <uwe.schmitt at procoders.net> wrote:

> Hi,
> 
> I wrote a simple sandbox for executing pyhton code in a
> restricted environment.
> The code can be downloaded from 
> http://www.procoders.net/download.php?fname=SandBox.py
> I appreciate any comments. I'm especially interested if
> my restrictions are secure or if they can be circumvented.

One fairly obvious hole: the _object attr of your proxies can be 
accessed without restriction.

Just