Variables variable
Hi folks, Someone know how to make variables variable like in PHP? It's something like this: $a = 'hi' $$a = 'testing' echo $hi 'testing' Regards -- Adriano Monteiro Marques www.gopython.com.br [EMAIL PROTECTED] I'm FREE... Are you? (PYTHON powered) -- http://mail.python.org/mailman/listinfo/python-list
Re: Variables variable
Adriano Monteiro wrote: Hi folks, Someone know how to make variables variable like in PHP? It's something like this: $a = 'hi' $$a = 'testing' echo $hi 'testing' You are most certainly wanting to use dictionaries. Or, if you work with attributes of an object, use getattr. Reinhold -- http://mail.python.org/mailman/listinfo/python-list
Re: Variables variable
In article [EMAIL PROTECTED], Reinhold Birkenfeld [EMAIL PROTECTED] wrote: Adriano Monteiro wrote: Hi folks, Someone know how to make variables variable like in PHP? It's something like this: $a = 'hi' $$a = 'testing' echo $hi 'testing' You are most certainly wanting to use dictionaries. Or, if you work with attributes of an object, use getattr. . . . I have a few comments on this: Python can do essentially what PHP does. One means is the getattr() Reinhold cites. HOWEVER, it's generally always a mistake to do so. Dictionaries are simply better. AND THAT'S TRUE IN PHP, too. I'm frankly disappointed in PHP leaders that they continue to promote this variable-variable idiom. As much as anything is certain in the realm of stylistic expression, dictionaries are a superior mechanism. -- http://mail.python.org/mailman/listinfo/python-list
Re: Variables variable
Hi All-- Cameron Laird wrote: . I have a few comments on this: Python can do essentially what PHP does. One means is the getattr() Reinhold cites. HOWEVER, it's generally always a mistake to do so. Dictionaries are simply better. AND THAT'S TRUE IN PHP, too. I'm frankly disappointed in PHP leaders that they continue to promote this variable-variable idiom. As much as anything is certain in the realm of stylistic expression, dictionaries are a superior mechanism. I don't know if this dictionary insight is Cameron's, but my experience with Python has been that when I'm developing something from scratch, I'll start with a big pile of cruft. I think I'll need this. Oh, and that, too. And what about this! Oooh, cool! Then I start carving away the excess. It usually takes two or three iterations at carving to realize that whatever it is needs a dictionary. I have never seen a case where a dictionary didn't improve the design. +1QOTW. Well. Storing a Mayan number/date as a dictionary turned out to be a Spectacularly Bad Idea(tm);-), so I guess that's one case. Metta, Ivan -- Ivan Van Laningham God N Locomotive Works http://www.andi-holmes.com/ http://www.foretec.com/python/workshops/1998-11/proceedings.html Army Signal Corps: Cu Chi, Class of '70 Author: Teach Yourself Python in 24 Hours -- http://mail.python.org/mailman/listinfo/python-list
