On Sun, Oct 3, 2021 at 1:55 AM Debashish Palit <dpali...@outlook.com> wrote: > > Ok it is a 3 way flag, but the code is not awkward. 'c' is just a name I > chose - it does not mean anything. > > The check for a valid number can be used on a list of strings - > > [float(s) for s in lst if s.isfloat() is not None] > > No 3 way flag here. Difficult to do with EAFP.
If you want to filter a list to just those which don't raise exceptions when you floatify them, just do that: def floatify(n): try: return float(n) except ValueError: return None [n for n in map(floatify, lst) if n is not None] Not everything has to be a built-in. The more specific it is to your purposes, the better to just write your own function. 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/MU4VSONSNIJUU645CFGOU7Z43MJM57VA/ Code of Conduct: http://python.org/psf/codeofconduct/