Re: The limitation of the Photon Hypothesis

[tanghaibao]

I definitely have no rights to judge this article but I have a vague
idea that this fine article goes to a wrong place. Except that the
topic thing is symbolically related: Photon hYpoTHesis limitatiON.

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Re: Lambda going out of fashion

[tanghaibao]

This is NOT true. Functional programming, AFAIKC, is a cool thing, and
in-fashion, increases productivity & readability, and an indispensable
thing for a flexible scripting lang. The inline/lambda function is
feature is shared by many lang. which I frequently use,
MATLAB/R/Python/etc. Well, you can say apply() is 'deprecated' now,
(which is another functional thing I like), but I am still using it. I
am not a desperate person who uses higher-order function factory a lot,
but if lambda keyword is removed, I swear I will not use the python
anymore.

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Re: Lambda going out of fashion

[tanghaibao]

I have this book called TEXT PROCESSING IN PYTHON by David Mertz on
hand, it is a good book and in the first chapter it is really a show
room for higher-order functions which I may now cite to remind you of
the FLEXIBILITY of this keyword.
''' combinatorial.py

from operator import mul, add, truth
apply_each = lambda funs, args = []: map(apply, fns, [args]*len(fns))
bools = lambda lst: mpa(truth, lst)
bool_each = lambda fns, args = []: bools(apply_each(fns, args))
conjoin = lambda fns, args = []: reduce(mul, bool_each(fns, args))
all = lambda fns: lambda arg, fns = fns: conjoin(fns, (arg,))
both = lambda f,g: all(f(f,g))
all3 = lambda f,g,h: all((f,g,h))
and_ = lambda f,g: lambda x, f=f, g=g: f(x) and g(x)
disjoin = lambda fns, args = []: reduce(add, bool_each(fns, args))
some = lambda fns: lambda arg, fns = fns: disjoin(fns, (arg,))
either = lambda f,g: some((f,g))
anyof3 = lambda f,g,h: some((f,g,h))
compose = lambda f,g: lambda x, f=f, g=g: f(g(x))
compose3 = lambda f,g,h: lambda x, f=f, g=g, h=j: f(g(h(x)))
ident = lambda x:x
'''
And some other lambda function usage is when they are treated like
objects, they can also fit in generators... THIS IS ART. Well, some may
argue that it is hard for people to maintain these codes, put the
problem to Haskell people and see how they respond(at least you don't
need to scroll up and down...) Oh! So when did python adopt simplicity
rather than verbosity?

Q: It simply doesn't FIT.
A: OK, OK, get all these map, filter stuff away, and go python, go and
get mixed with them.

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Re: Lambda going out of fashion

[tanghaibao]

Thanks. :-) Two remarks.
o One-liner fits the eyes & brains of a portion of people.
o Why don't you just say all python can be written in equivalent java,
can I assert that Guido doesn't want to get mixed with those
mainstream>?

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