Python and the need for speed
rustompmody at gmail.com
Wed Apr 12 09:48:51 EDT 2017
On Wednesday, April 12, 2017 at 7:09:04 PM UTC+5:30, Ben Bacarisse wrote:
> Steve D'Aprano writes:
> > On Wed, 12 Apr 2017 03:39 am, Paul Rubin wrote:
> >> I still do my everyday stuff in Python and I'd like to get more
> >> conversant with stuff like numpy, but it feels like an old-fashioned
> >> language these days.
> > "Old fashioned"? With await/async just added to the language, and type
> > annotations? And comprehensions and iterators?
> > Admittedly type annotations are mostly of interest to large projects with
> > many developers and a huge code base. But the rest?
> > Comprehensions may have been around for a decade or two in Haskell, but most
> > older languages don't have them. I'm pretty sure Java doesn't. Does
> > me.
> They've been in in Haskell for nearly three decades, but they were
> around before that. Miranda had them, as did Miranda's immediate
> predecessor, KRC. KRC dates from about 1980, so if you've been using
> that lineage of languages, list comprehensions have been a standard
> feature for 37 years. I've been using them almost my entire programming
> them, but then JS seems to hide its function nature under an imperative
Comes from set comprehensions in SETL (I think)
ie about 50 years old
Which itself goes back another 50 years to Zermelo-Fraenkel set theory
[Miranda actually used to call list comprehensions as ZF-expressions]
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