I find itertools.islic e() useful, so for Python 3.x I may like to see
it removed from the itertools module, and the normal slicing syntax
[::] extended to work with generators/iterators too.
from itertools import islice
primes = (x for x in xrange(1,999) if all(x % y for y in xrange(2,
x)))
print list(islice(pri mes, 0, 20))
==>
print list(primes[:20])
Bye,
bearophile
3  2351 
[castiro]
Slice literals are a logical next step, precedented by raw strings and
bytes. slice= islice is too, precedented by range= xrange.
Looking closely at the [::] notation, I think it can easily be
confused with an open box of fleas. IMO, the one unequivocal,
explicit way of checking for lice is itertools.is_li ce().
Raymond
_ ~
@ @
\_/
On Mar 7, 7:49 am, bearophileH...@ lycos.com wrote:
I find itertools.islic e() useful, so for Python 3.x I may like to see
it removed from the itertools module, and the normal slicing syntax
[::] extended to work with generators/iterators too.
from itertools import islice
primes = (x for x in xrange(1,999) if all(x % y for y in xrange(2,
x)))
print list(islice(pri mes, 0, 20))
==>
print list(primes[:20])
Bye,
bearophile
I had posted some time ago an OO wrapper of itertools; slice notation
for islice was one motivation: http://aspn.activestate.com/ASPN/Coo.../Recipe/498272
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