On Mon, Oct 25, 2021 at 7:40 PM Jeremiah Vivian <nohackingofkrow...@gmail.com> wrote: > > I DO expect this thread to be bombarded with negative replies. > > Currently, there are `in`/`not in` operators which work like this in Python: > > def contains(contains_value, iterable, not_in): > > for element in iterable: > > if element == contains_value: > > return True ^ not_in > > return False ^ not_in > If I wanted to check if an *exact* object is in an iterable, I would have to > loop like this (reverse boolean values for implementation of `not is in`): > > is_in = False > > for element in iterable: > > if element is contains_value: > > is_in = True > I would want a more *convenient* way to check for this value. So therefore, > there should be `is in`/`not is in` operators to do it better. Is this a > valid reason?
What's your use-case? Can you give an example? Sometimes the solution is a different data structure, like an identidict. ChrisA _______________________________________________ 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/ZMMBKMNYKRDXUSFCPKN6QUE27C3IQ2OG/ Code of Conduct: http://python.org/psf/codeofconduct/
