Re: [Python-Dev] Capabilities / Restricted Execution

2006-07-16 Thread James Y Knight
On Jul 16, 2006, at 5:42 AM, Scott Dial wrote: > Talin wrote: >> Scott Dial wrote: >>> Phillip J. Eby wrote: >>> A function's func_closure contains cell objects that hold the variables. These are readable if you can set the func_closure of some function of your own. If the

Re: [Python-Dev] Capabilities / Restricted Execution

2006-07-16 Thread Scott Dial
Talin wrote: > Scott Dial wrote: >> Phillip J. Eby wrote: >> >>> A function's func_closure contains cell objects that hold the >>> variables. These are readable if you can set the func_closure of some >>> function of your own. If the overall plan includes the ability to restrict >>> func_closu

Re: [Python-Dev] Capabilities / Restricted Execution

2006-07-11 Thread Talin
Scott Dial wrote: > Phillip J. Eby wrote: > >>A function's func_closure contains cell objects that hold the >>variables. These are readable if you can set the func_closure of some >>function of your own. If the overall plan includes the ability to restrict >>func_closure setting (or reading)

Re: [Python-Dev] Capabilities / Restricted Execution

2006-07-11 Thread Phillip J. Eby
At 01:30 PM 7/11/2006 -0400, Scott Dial wrote: >Phillip J. Eby wrote: > > A function's func_closure contains cell objects that hold the > > variables. These are readable if you can set the func_closure of some > > function of your own. If the overall plan includes the ability to > restrict > > f

Re: [Python-Dev] Capabilities / Restricted Execution

2006-07-11 Thread Scott Dial
Phillip J. Eby wrote: > A function's func_closure contains cell objects that hold the > variables. These are readable if you can set the func_closure of some > function of your own. If the overall plan includes the ability to restrict > func_closure setting (or reading) in a restricted interpr

Re: [Python-Dev] Capabilities / Restricted Execution

2006-07-11 Thread Phillip J. Eby
At 03:36 AM 7/11/2006 -0700, Talin wrote: >I thought a little bit more about Guido's comment that you can hide >Python objects in a C wrapper class. However, as I was trying to sleep, >I realized that you don't even need C to do it. > >The trick is to store the object reference as a closure variabl

[Python-Dev] Capabilities / Restricted Execution

2006-07-11 Thread Talin
I thought a little bit more about Guido's comment that you can hide Python objects in a C wrapper class. However, as I was trying to sleep, I realized that you don't even need C to do it. The trick is to store the object reference as a closure variable. Assuming that there's no mechanism to dir