list assignment using concatenation "*"
If I do: a = [ [0,0,0], [0,0,0], [0,0,0] ] a[0][1] = 1 I get: a = [ [0,1,0],[0,0,0],[0,0,0] ] as expected But if I do: a = [ [0] * 3 ] * 3 a[0][1] = 1 I get a = [[0,1,0],[0,1,0],[0,1,0]] AFAIC, "*" is supposed to generate multiple copies of the given token. Therefore I thought both cases would be the same, but they are not. Can anyone explain to me what exactly is going on in the second case? -- http://mail.python.org/mailman/listinfo/python-list
doesNotUnderstand?
Hello :). Some days ago i went to a seminar about Metaprograming and Reflection.I was a little famirialized with the subject, and wanted to explore it further.The seminar was great, but the point is that every example was programmed in smalltalk. I know smalltalk, and never have much use for the doesNotUnderstand method until the guys at the conference open my eyes with some examples.Altough i have applied concepts of reflection in python many times, i think i't will be nice to have a magic method that works like doesNotUnderstand for some purposes. The reason i'm writing is because i want to know if such method already exists... or maybe... if you think having one it's a good/possible idea.Right now... im thinkng i really can emulate that behavior using Exceptions..., and i really think that's what SmallTalk kind of do under-the-hood (dont flame me if i'm terribly worng plz). But i still want to know if theres a method like __insertMethodNameHere__ that does it for me... or if you think it's a nice thing to have...i'm REALLY SORRY for my REALLY BAD English... so..., don't hate me please.. And I'm sorry if this question wasted your time.Thanks anyway..liquid ^.^ -- http://mail.python.org/mailman/listinfo/python-list
any portable way to print? (and i mean on a printer)
I think my question is clear.., is there any way to print any text on a portable way?..., and actually, i don't know how to print at all.., just give me some pointers, name a module, and i can investigate for myself.. sorry for my english, thanks in advance.. ps: i prefer a Standard Library module. -- http://mail.python.org/mailman/listinfo/python-list
