On Sun, Oct 03, 2021 at 01:26:06AM -0000, Debashish Palit wrote: > The floatify solution is a bit involved - using map inside a list > comprehension. Usually list comprehensions replace the usage of map. > Also floatify requires 5 extra lines of code (putting `return` on the > same line is not a best practice). Why not do it with one simple line > of code ?
Of course you can do it with one line of code. Nobody is telling you that you mustn't use your "isfloat()" function in your own code. Go right ahead. We're just pointing out why it is not likely to be made into a built in string method. - too narrow use: the good use cases for it are very small; - too specialized: it doesn't generalise to other numeric formats without re-writing the function; - awkward interface: it returns a three-way flag, True, False or None; - wrongly named: isfloat() doesn't return a True/False bool to tell you whether the string is a float, it returns three values to tell you whether it is a float, an int or neither; - duplicated effort: having called the method, you still have to call float() or int() again to actually get the result you actually want. -- Steve _______________________________________________ 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/OD5JKH35ADB4MDC5X5MUWOSK26XAFJRZ/ Code of Conduct: http://python.org/psf/codeofconduct/
