I see there are ways to compare them item-wise, I'm suggesting to bake that functionality inside the core implementation of such indexed structures. Also those solutions are direct with tuples and lists, but it wouldn't be as direct with arrays-lists/tuples comparisons for example.
On Sat, 2 May 2020, 6:58 pm Antoine Rozo, <antoine.r...@gmail.com> wrote: > (and a check on the length or zip_longest to ensure that there is no > other items) > > Le sam. 2 mai 2020 à 18:53, Antoine Rozo <antoine.r...@gmail.com> a écrit > : > > > > And if you can't / don't want to create new lists for the values you > > want to compare, a solution could be to use zip & all builtins: > > > > print(all(a == b for a, b in zip(tuple_, list_))) > > > > Le sam. 2 mai 2020 à 16:58, Steele Farnsworth <swfarnswo...@gmail.com> > a écrit : > > > > > > You can get the desired behavior by casting a list to a tuple, or a > tuple to a list, in the equality statement. That way those that rely on the > existing implementation don't have to change their code. > > > > > > my_tup = (1, 2, 3) > > > my_list = [1, 2, 3] > > > print(list(my_tup) == my_list) > > > > > > On Sat, May 2, 2020, 9:04 AM Ahmed Amr <ahmedam...@gmail.com> wrote: > > >> > > >> I'd like to take your opinion on modifying some of the indexed > collections like tuples, lists, arrays to evaluate its equality to True > when having the same items in the same indexes. > > >> Currently, when comparing a list of items to an array of the same > items for equality (==) it returns False, I'm thinking that it would make > sense to return True in that context, as we're comparing item values and we > have the same way of indexing both collections, so we can compare item > values. > > >> > > >> So what do you think about applying such behavior on collections that > can be indexed the same way such as tuples, lists, and arrays? > > >> > > >> Example: (Current) > > >> > > >> import array > > >> tuple_ = (1.1, 2.2, 3.3) > > >> list_ = [1.1, 2.2, 3.3] > > >> array_ = array.array('f', [1.1, 2.2, 3.3]) > > >> > > >> # all of the following prints False. > > >> print(tuple_ == list_) > > >> print(tuple_ == array_) > > >> print(array_ == list_) > > >> > > >> Example: (Proposed): > > >> All prints above to show True as they are populated with the same > data in the same indexes. > > >> > > >> A Side Note: > > >> An extra point to discuss, based on arrays implementation, > array_.to_list() would actually get [1.100000023841858, 2.200000047683716, > 3.299999952316284] which is not exactly what we've passed as args and this > is normal, but I'm thinking about leaving it to the array implementation to > encapsulate that implementation and perform exact equality based on passed > arguments. > > >> _______________________________________________ > > >> Python-ideas mailing list -- python-ideas@python.org > > >> To unsubscribe send an email to python-ideas-le...@python.org > > >> https://mail.python.org/mailman3/lists/python-ideas.python.org/ > > >> Message archived at > https://mail.python.org/archives/list/python-ideas@python.org/message/UE5HGECRTS3ERK5OMG3GB77EKSAFJV7R/ > > >> Code of Conduct: http://python.org/psf/codeofconduct/ > > > > > > _______________________________________________ > > > Python-ideas mailing list -- python-ideas@python.org > > > To unsubscribe send an email to python-ideas-le...@python.org > > > https://mail.python.org/mailman3/lists/python-ideas.python.org/ > > > Message archived at > https://mail.python.org/archives/list/python-ideas@python.org/message/NPEIUL3A7JYPFTDLVLOOENT5UXFYJKUT/ > > > Code of Conduct: http://python.org/psf/codeofconduct/ > > > > > > > > -- > > Antoine Rozo > > > > -- > Antoine Rozo > _______________________________________________ > Python-ideas mailing list -- python-ideas@python.org > To unsubscribe send an email to python-ideas-le...@python.org > https://mail.python.org/mailman3/lists/python-ideas.python.org/ > Message archived at > https://mail.python.org/archives/list/python-ideas@python.org/message/HSJP5SF6HVVGOHSYROQDGV6HNSYWK7TR/ > Code of Conduct: http://python.org/psf/codeofconduct/ >
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