On Monday, September 12, 2016 at 5:21:51 PM UTC-4, Thomas 'PointedEars' Lahn wrote: > Chris Angelico wrote: > > > On Mon, Sep 12, 2016 at 9:14 PM, Daiyue Weng <daiyuew...@gmail.com> wrote: > > If you know that 'errors' is always going to be a list, you can check > > for emptiness thus: > > > > if not errors: > > If I knew that it is always going to be a list or a tuple, I would check its > length instead: > > if len(errors) == 0: > > Only if I did not know that I would use the “not” keyword, because the > latter > > a) forces a type conversion to “bool”; > b) also works with values of other types.
Why do you object to the type conversion to bool? --Ned. -- https://mail.python.org/mailman/listinfo/python-list
