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Alex Martelli wrote:
> Antoon Pardon <> wrote:
> ...
> > When using list comprehension not having a ternary operator can be
> > a PITA. It is of course possible I miss something but how am I
> > supposed to do the following:
> >
> > [ x.property ? foo(x) : bar(x) for x in Somelist ]
>
> If you HAVE to use an LC by doctor's order, the above effect might be
> obtained by coding something like:
>
> [ (bar,foo)[bool(x.property)](x) for x in Somelist ]
>
> If your physician should relent and let you code normal
> Python, though,
>
> aux = []
> for x in Somelist:
> if x.property:
> aux.append(foo(x))
> else
> aux.append(foo(x))
>
> would be vastly more readable; "sparse is better than dense"
> and any LC
> is far too dense to be Pythonic here.

Case in point: it makes it *vastly* easier to see the typo. What
happened to bar()?

But you planned that so someone else could deliver the punch line,
didn't you?


Robert Brewer
MIS
Amor Ministries

Robert Brewer <> wrote:
...
> > aux = []
> > for x in Somelist:
> > if x.property:
> > aux.append(foo(x))
> > else
> > aux.append(foo(x))
> >
> > would be vastly more readable; "sparse is better than dense"
> > and any LC
> > is far too dense to be Pythonic here.
>
> Case in point: it makes it *vastly* easier to see the typo. What
> happened to bar()?

Closing hours...?


> But you planned that so someone else could deliver the punch line,
> didn't you?

Ahem, yes, why, sure!


Alex