On Sat, Aug 19, 2017 at 09:05:36AM -0700, David Mertz wrote: > You are right, of course. Mine does the order wrong. But an 'rcompose()' or > 'pipe()' or 'funchain()' is easy enough to put in the right order.
Indeed. I said earlier that your solution (corrected for its error) was a pretty neat solution, and it was mostly down to a sense of aethetics which we might prefer. I think a pipe or arror is aethetically nicer, and speaks much more closely to the intent. Analogy: We don't need operators + - * / etc, since it's trivial to get the same effect using the functions in the operator module. But operators look nicer and are closer to the way people think of arithmetic. I think that function composition is a neat and powerful tool for those who already think functionally, but higher order functions are harder to teach and even experts can mess them up. (The lesson here is that the pipe operator | is like a postfix version of the composition operator ∘ .) -- Steve _______________________________________________ Python-ideas mailing list [email protected] https://mail.python.org/mailman/listinfo/python-ideas Code of Conduct: http://python.org/psf/codeofconduct/
