Jean-Baptiste Braun wrote:
> 2015-01-13 22:48 GMT+01:00 Steven D'Aprano <
> steve+comp.lang.pyt...@pearwood.info>:
>
>> So you have been comparing:
>>
>> 2
>>
>> versus
>>
>> exec('1+1')
>>
>>
>> The first case just fetches a reference to a pre-existing int object, and
>> then deletes the
On Wed, Jan 14, 2015 at 2:02 AM, Jean-Baptiste Braun
wrote:
> What I don't understand is the ratio between test 2 / 4 and test 1 / 3.
>
> Let 0.0229 sec be the execution time to read a bytecode (1st test).
> Executing two times that bytecode takes 0.042 sec (test 3), which looks
> coherent.
>
> Le
On Thu, Jan 15, 2015 at 12:38 AM, Jean-Baptiste Braun
wrote:
> 2015-01-14 12:14 GMT+01:00 Chris Angelico :
>>
>> Would it be possible to do a one-off transformation of the entire XSLT
>> file into a Python module with a single function in it, and then every
>> time you need that XSLT, you import t
2015-01-14 12:14 GMT+01:00 Chris Angelico :
> Would it be possible to do a one-off transformation of the entire XSLT
> file into a Python module with a single function in it, and then every
> time you need that XSLT, you import that module and call the function?
> That would potentially be a lot q
On Wed, Jan 14, 2015 at 8:02 PM, Jean-Baptiste Braun
wrote:
> What I'm trying to do is to map a transformation description in a markup
> langage (XSLT) in python to improve execution time. Here is a simplification
> of what it looks like :
>
> XSLT :
>
>
>
>Mr
>
>
>Mrs
>
>
2015-01-13 22:48 GMT+01:00 Steven D'Aprano <
steve+comp.lang.pyt...@pearwood.info>:
> So you have been comparing:
>
> 2
>
> versus
>
> exec('1+1')
>
>
> The first case just fetches a reference to a pre-existing int object, and
> then deletes the reference. That's fast.
>
> The second case:
Jean-Baptiste Braun wrote:
> Hi,
>
> I'm working on auto-generated python code with the exec function. I've
> done some performance benches :
[snip timing results]
> Am I missing something or should I expect that result ? What does using
> exec imply that causes such a difference ?
exec'ing a
On Tue, Jan 13, 2015 at 10:02 AM, Jean-Baptiste Braun
wrote:
> Hi,
>
> I'm working on auto-generated python code with the exec function. I've done
> some performance benches :
>
> % python -m timeit '1 + 1'
> 1000 loops, best of 3: 0.0229 usec per loop
>
> % python -m timeit "exec('1 + 1')"
>
