On Sat, 20 Jun 2020 at 04:02, MRAB firstname.lastname@example.org wrote:
On 2020-06-20 02:22, Robert DeLanghe wrote:
You can already do compact conditional returns with the current syntax:
def foo(a, b): return (a != b or None) and a * b
foo = (lambda a, b: (a != b or None) and a * b)
foo(2, 5) # 10 foo(1, 1) # None
... but clarity would be better.
That can be written more clearly:
def foo(a, b): return a * b if a != b else None
I find the non-compact version to be clearer:
def foo(a, b): if a != b: return a*b return None
On Fri, Jun 19, 2020 at 4:20 AM Serhiy Storchaka <email@example.com
18.06.20 15:30, Daniel. пише: > I love the do_stuff if cond syntax in Ruby and in perl. It's very > natural to real, much more to follow than if cond: do_stuff > > But still I don't think that it is enough to demand a language change. > > Something near this is to have a default of none for > > A if B else None > > So we can ommit the else None part, but this goes against the explicit > is better than implicit Only around 10% of "if" expressions have "else None" part. It is not enough to justify a new syntax (even if ignore other objections).
Python-ideas mailing list -- firstname.lastname@example.org To unsubscribe send an email to email@example.com https://mail.python.org/mailman3/lists/python-ideas.python.org/ Message archived at https://firstname.lastname@example.org/message/J7TH3N... Code of Conduct: http://python.org/psf/codeofconduct/