A correction to the code at the end. The test of self.total_num_of_items should precede the pop(0)
[EMAIL PROTECTED] wrote: > > > On 7/20/07, *Bob Gailer* <[EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]>> wrote: > > Take advantage of slicing: > def create_grid(self): > table = [] > for i in range(0, len( self.total_num_of_items), > self.max_num_of_items_per_row): > table.append(tuple(self.total_num_of_items[i : i + > self.max_num_of_items_per_row ])) > return table > > > simply amazing. Thank you. One of the many "shifts" one makes in adjusting to "new" language features. I made such a shift in 1974 when I switched from FORTRAN and PL/I to APL. > > OK - to address your original question: > > def create_grid(self): > table = [] > while self.total_num_of_items: > row = [] > count = 0 > while count < self.max_num_of_items_per_row and > self.total_num_of_items: > row.append(self.total_num_of_items.pop(0)) > count += 1 > table.append(tuple(row)) > return table > > > At first I regarded you with quiet awe We gurus bask in attention. > , but then the nitpick in me saw the two "while > self.total_num_of_item" statements, and I was less pleased. Oh all right, that costs us one more statement. Independently we can get rid of count: def create_grid(self): table = [] while True: row = [] while len(row) < self.max_num_of_items_per_row: if not self.total_num_of_items: return table row.append(self.total_num_of_items.pop(0)) table.append(tuple(row)) -- Bob Gailer 510-978-4454 Oakland, CA 919-636-4239 Chapel Hill, NC _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
