Re: [Python-Dev] Possible optimization for LOAD_FAST ?

2010-12-31 Thread Cesare Di Mauro
2010/12/31 > >>> Another example. I can totally remove the variable i, just using the >>> stack, so a debugger (or, in general, having the tracing enabled) > >> cannot even find something to change about it. > Ethan> -1 > >Ethan> Debugging is challenging enough as it is -- wh

Re: [Python-Dev] Possible optimization for LOAD_FAST ?

2010-12-31 Thread Cesare Di Mauro
2010/12/31 Ethan Furman > Cesare Di Mauro wrote: > > > > >> 2010/12/29 "Martin v. Löwis" wrote: >> > >> > >> Am 28.12.2010 18:08, schrieb Lukas Lueg: >>> Also, the load_fast in lne 22 to reference x could be taken out of the >>> >>> loop as x will always point to the same object > >

[Python-Dev] Summary of Python tracker Issues

2010-12-31 Thread Python tracker
ACTIVITY SUMMARY (2010-12-24 - 2010-12-31) Python tracker at http://bugs.python.org/ To view or respond to any of the issues listed below, click on the issue. Do NOT respond to this message. Issues counts and deltas: open2525 (-17) closed 20058 (+49) total 22583 (+32) Open issues wit

Re: [Python-Dev] Possible optimization for LOAD_FAST ?

2010-12-31 Thread skip
>> Another example. I can totally remove the variable i, just using the >> stack, so a debugger (or, in general, having the tracing enabled) >> cannot even find something to change about it. Ethan> -1 Ethan> Debugging is challenging enough as it is -- why would you want to

Re: [Python-Dev] Possible optimization for LOAD_FAST ?

2010-12-31 Thread Ethan Furman
Cesare Di Mauro wrote: > 2010/12/29 "Martin v. Löwis" wrote: >> Am 28.12.2010 18:08, schrieb Lukas Lueg: Also, the load_fast in lne 22 to reference x could be taken out of the >>> loop as x will always point to the same object That's not true; a debugger may change the value of x. An

Re: [Python-Dev] Possible optimization for LOAD_FAST ?

2010-12-31 Thread Cesare Di Mauro
2010/12/31 Maciej Fijalkowski > On Fri, Dec 31, 2010 at 12:00 PM, Maciej Fijalkowski > wrote: > >> OK, but is it mandatory? For example, in the above code, I can unroll > the > >> loop because I found that range is the usual built-in, 5 is a low-enough > >> constant, > > > > How do you know xran

Re: [Python-Dev] Possible optimization for LOAD_FAST ?

2010-12-31 Thread Maciej Fijalkowski
On Fri, Dec 31, 2010 at 12:00 PM, Maciej Fijalkowski wrote: >> OK, but is it mandatory? For example, in the above code, I can unroll the >> loop because I found that range is the usual built-in, 5 is a low-enough >> constant, > > How do you know xrange is xrange and not something else? > > Cheers,

Re: [Python-Dev] Possible optimization for LOAD_FAST ?

2010-12-31 Thread Maciej Fijalkowski
> OK, but is it mandatory? For example, in the above code, I can unroll the > loop because I found that range is the usual built-in, 5 is a low-enough > constant, How do you know xrange is xrange and not something else? Cheers, fijal ___ Python-Dev mail