On Sep 23, 3:02 pm, Simon Forman <sajmik...@gmail.com> wrote: > On Wed, Sep 23, 2009 at 1:14 PM, Rudolf <yellowblueyel...@gmail.com> wrote: > > Can someone tell me how to allocate single and multidimensional arrays > > in python. I looked online and it says to do the following x = > > ['1','2','3','4'] > > > However, I want a much larger array like a 100 elements, so I cant > > possibly do that. I want to allocate an array and then populate it > > using a for loop. Thanks for your help. > > -- > >http://mail.python.org/mailman/listinfo/python-list > > In python they're called 'lists'. There are C-style array objects but > you don't want to use them unless you specifically have to. ... > But if you do this: > > two_dimensional_list = [ [] for var in some_iterable] > > The list of lists you create thereby will contain multiple references > to the /same/ inner list object.
No, that creates a list of distinct empty lists. If you want multiple references to the same inner list, it's inner_list = [] two_dimensional_list = [inner_list for var in some_iterable] or two_dimensional_list = [[]] * num_copies -- http://mail.python.org/mailman/listinfo/python-list
