[Python-ideas] filter-only list comps
Stephen J. Turnbull
stephen at xemacs.org
Fri Feb 26 04:28:05 CET 2010
Greg Ewing writes:
> [x from stuff]
> is a shorthand for
> [x for x in stuff]
Any time you say "shorthand" you're probably violating TOOWTDI. :-)
> As a bonus, the short form could probably be made more
> efficient, because the tuples produced by the for-loop
> could be put straight into the result list, instead of
> having to re-pack k and v into a new tuple.
This is a straightforward optimization that should be done anyway,
though, if it isn't done already.
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