[Python-ideas] Documenting Python warts
Chris Angelico
rosuav at gmail.com
Wed Jan 2 10:37:51 CET 2013
On Wed, Jan 2, 2013 at 8:27 PM, Steven D'Aprano <steve at pearwood.info> wrote:
> There would be a lot less confusion if they weren't called "else". Even
> now, I have to explicitly remind myself that the else block doesn't
> run if the for loop is empty, but *after* the for block.
>
> # Python 4000 proposal:
> for x in seq:
> ...
> then:
> # this is skipped by a break
> else:
> # this runs only if seq is empty
Calling it "else" makes perfect sense if you're searching for something.
for x in lst:
if x.is_what_we_want(): break
else:
x=thing()
lst.append(x)
ChrisA
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