Nice, I'll test things out. Em terça-feira, 17 de abril de 2012 10h04min05s UTC-3, Philip escreveu: > > You probably want the profile module from the standard library. This will > tell you all sorts of useful things about how much time functions are > taking and how many times they are called etc... > > http://docs.python.org/library/profile.html#module-profile > > Regards > Phil > > On 17/04/2012 13:48, Arruda wrote: > > yes, I see, but how can I measure this? Do you know the function that is > used? > Thanks for the help. > > Em terça-feira, 17 de abril de 2012 05h39min24s UTC-3, Philip escreveu: >> >> Are you changing the definition of the function each time, or just >> effectively making duplicates of some common function under different names? >> >> You can do things like this: >> >> def make_funct(blah): >> def inner(): >> print blah >> >> return inner >> >> Then make a few of them with different names and pre-assigned config via >> the parameters: >> >> f1 = make_funct('Hello World!') >> f2 = make_funct('Foo') >> >> And call 'em (with no parameters): >> >> f1() => prints Hello World! >> f2() => prints Foo >> >> Perhaps that's not what you're looking for though? >> >> In terms of performance, I suggest trying out both approaches and >> measuring the time taken to do it a few hundred or thousand times and >> compare. >> >> Regards >> Phil >> >> >> On 16/04/2012 17:55, Arruda wrote: >> >> Hummm, I see, thanks for that, I didn't know about type. >> And is there a way to generate functions too?(I was also doing it using >> exec). >> >> And do you have any idea of how can I see the difference in performance >> when using one or the other? >> Thanks. >> >> Em segunda-feira, 16 de abril de 2012 13h45min58s UTC-3, Jefferson Heard >> escreveu: >>> >>> Check https://github.com/JeffHeard/ga_dynamic_models. It may be >>> similar to what you're looking for. Even if you don't want the code, you >>> can see a way of dynamically generating models. >>> >>> On Mon, Apr 16, 2012 at 12:40 PM, Philip Mountifield < >>> pmountifi...@formac.net> wrote: >>> >>>> Did you know that you can use the type function to dynamiclly generate >>>> a class definition? >>>> >>>> See http://docs.python.org/library/functions.html?highlight=type#type >>>> >>>> From the example: >>>> >>>> >>> class X(object):... a = 1 >>>> Is exactly the same as doing...>>> X = type('X', (object,), dict(a=1)) >>>> >>>> No exec required... >>>> >>>> Regards >>>> Phil >>>> >>>> >>>> >>>> On 16/04/2012 17:19, Arruda wrote: >>>> >>>> I'm doing something like this to generate some models dynamically: >>>> >>>> SIMILAR_MODELS_TEMPLATE= >>>>> """ >>>>> @some_decorator >>>>> class %(PREFIX)sModel (Some_Abs_model): >>>>> \"""%(DESCRIPTION)s >>>>> \""" >>>>> pass >>>>> """ >>>> >>>> >>>> then I have a factory: >>>> >>>>> def similar_models_factory(prefix,description): >>>>> format_dict = { >>>>> 'PREFIX' : prefix, >>>>> 'DESCRIPTION' : description, >>>>> } >>>>> cls_name = "%sModel" % prefix >>>>> cls_source = SIMILAR_MODELS_TEMPLATE % format_dict >>>>> >>>>> exec(cls_source) >>>>> new_cls = locals().get(cls_name) >>>>> return new_cls >>>> >>>> >>>> And finally I have in the models.py: >>>> >>>>> from my_factories import similar_models_factory >>>>> >>>> >>>> >>>> SIMILAR_MODELS_LIST =( >>>>> {'prefix': 'Foo', 'desc' : 'Foo model and etc..',}, >>>>> {'prefix': 'Bars', 'desc' : 'Bars model and etc..',}, >>>>> ..... >>>>> ) >>>>> >>>> >>>> >>>> for smodel in SIMILAR_MODELS_LIST: >>>>> cls = similar_models_factory(smodels['prefix'], smodels['desc']) >>>>> vars()[cls.__name__] = cls >>>> >>>> >>>> And this gives my just what I want, but I read somewhere that if you >>>> do: >>>> >>>>> exec "" >>>> >>>> >>>> It would be too costly, and I would like to know if this would have >>>> some heavy load in my project(and if please, how can I calculate this, to >>>> compare?) >>>> Thanks! >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "Django users" group. >>>> To view this discussion on the web visit >>>> https://groups.google.com/d/msg/django-users/-/64JCLnsIFu0J. >>>> To post to this group, send email to django-users@googlegroups.com. >>>> To unsubscribe from this group, send email to >>>> django-users+unsubscr...@googlegroups.com. >>>> For more options, visit this group at >>>> http://groups.google.com/group/django-users?hl=en. >>>> >>>> >>>> >>>> -- >>>> >>>> Philip Mountifield >>>> Formac Electronics Ltd >>>> tel +44 (0) 1225 837333 >>>> fax +44 (0) 1225 430995 >>>> pmountifi...@formac.netwww.formac.netwww.telgas.net >>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "Django users" group. >>>> To post to this group, send email to django-users@googlegroups.com. >>>> To unsubscribe from this group, send email to >>>> django-users+unsubscr...@googlegroups.com. >>>> For more options, visit this group at >>>> http://groups.google.com/group/django-users?hl=en. >>>> >>> >>> -- >> You received this message because you are subscribed to the Google Groups >> "Django users" group. >> To view this discussion on the web visit >> https://groups.google.com/d/msg/django-users/-/pxR15NDv5RUJ. >> To post to this group, send email to django-users@googlegroups.com. >> To unsubscribe from this group, send email to >> django-users+unsubscr...@googlegroups.com. >> For more options, visit this group at >> http://groups.google.com/group/django-users?hl=en. >> >> >> >> -- >> >> Philip Mountifield >> Formac Electronics Ltd >> tel +44 (0) 1225 837333 >> fax +44 (0) 1225 430995 >> pmountifi...@formac.netwww.formac.netwww.telgas.net >> >> > > -- > > Philip Mountifield > Formac Electronics Ltd > tel +44 (0) 1225 837333 > fax +44 (0) 1225 430995 > pmountifi...@formac.netwww.formac.netwww.telgas.net > >
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