Python handles globals badly.
Marko Rauhamaa
marko at pacujo.net
Fri Sep 11 07:59:20 EDT 2015
Antoon Pardon <antoon.pardon at rece.vub.ac.be>:
> I just don't get why people want to introduce special cases in python.
> Why allow such a construct only in while and if? Why not just allow
> it generally as an assignment expression?
>
> Why not allow:
>
> while (f(x) as fx) > 5:
> proces(fx)
>
> or
>
> if check(nextvalue() as new):
> treat(new)
Hey, I know, I know!... Let's allow:
while (fx = f(x)) > 5:
process(fx)
if check(new = nextvalue()):
treat(new)
Seriously, though, I share your distaste of special cases, Antoon. Only
I don't like too much syntax (just look at Perl). There's nothing wrong
in:
while True:
fx = f(x)
if fx <= 5:
break
process(fx)
new = nextvalue()
if check(new):
treat(new)
Marko
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