2009/7/9 Marcin Kosiba marcin.kos...@gmail.com:
On Thursday 09 July 2009, Cristiano Paris wrote:
Thanks. In fact, I was stuck trying to find an example which couldn't
be written using Python's iterators. The only difference coming up to
my mind was that Haskell's lists are a more natural way
Thomas Davie wrote:
On 9 Jul 2009, at 14:55, Cristiano Paris wrote:
I'm wondering what a good example of why laziness enhances
composability would be.
I'm specifically looking for something that can't implemented in
Python with iterators (at least not elegantly), but can actually be
Hi,
I'm wondering what a good example of why laziness enhances composability
would be.
I'm specifically looking for something that can't implemented in Python with
iterators (at least not elegantly), but can actually be implemented in
Haskell.
Thanks,
Cristiano
Hello,
A wonderful, and practical example, is the techniques in this modular lazy
search paper:
http://web.cecs.pdx.edu/~apt/jfp01.ps
They build simple solvers, like backtracking, backjumping, etc. and
then compose them together like: bt . bj
The techniques are very much based on laziness.
On 9 Jul 2009, at 14:55, Cristiano Paris wrote:
Hi,
I'm wondering what a good example of why laziness enhances
composability would be.
I'm specifically looking for something that can't implemented in
Python with iterators (at least not elegantly), but can actually be
implemented in
Thank you for your suggestions!
C.
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Hello Cristiano,
Thursday, July 9, 2009, 4:55:09 PM, you wrote:
the best known example is chessmate implementation in Wadler's why
functional programming matter
but i don't know much about Python iterators, so can't say what is
difference. may be its' only simplicity since lazy lists is looks
On Thu, Jul 9, 2009 at 3:42 PM, Bulat Ziganshin
bulat.zigans...@gmail.com wrote:
Hello Cristiano,
Thursday, July 9, 2009, 4:55:09 PM, you wrote:
the best known example is chessmate implementation in Wadler's why
functional programming matter
but i don't know much about Python iterators,
Bulat Ziganshin wrote:
Hello Cristiano,
Thursday, July 9, 2009, 4:55:09 PM, you wrote:
the best known example is chessmate implementation in Wadler's why
functional programming matter
Aeh, ... Wadler's - Hughes'
--
Dr. Janis Voigtlaender
http://wwwtcs.inf.tu-dresden.de/~voigt/
On Thursday 09 July 2009, Cristiano Paris wrote:
Thanks. In fact, I was stuck trying to find an example which couldn't
be written using Python's iterators. The only difference coming up to
my mind was that Haskell's lists are a more natural way to express a
program relying on laziness. That
On Thursday 09 July 2009, you wrote:
2009/7/9 Marcin Kosiba marcin.kos...@gmail.com:
I thought I'll go the smart way and rely on the Python yield construct
to do a CPS transformation of my code.
While this worked to a certain extent, composability was a
problem, because any
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