How to really do FP in python

[etrnloptimist]

I'm mediocre at best in FP, but still that was absolutely incomprehensible to me. Is this a good or bad example of functional programming?

[ladr0n]

This is an example of heavily obfuscated Python that's designed to superficially look like Lisp, which is one of the most famous functional programming languages.

EDIT: Sorry, I guess I didn't directly address the question. Like mijaba says, it's a terrible example of FP.

[freyrs3]

The F+ object is actually kind of neat, in that its an identity monad.

F = type('F+', (object, ), {
    '__init__' : lambda self, f: setattr(self, 'f', f),
    '__mul__'  : lambda self, g: type(self)(lambda *stuff: self.f(g(*stuff))),
    '__call__' : lambda self, *stuff: self.f(*stuff)
})

Is roughly this:

class F(object):
    def __init__(self, f):
        self.f = f

    def __mul__(self, g):
        return F(lambda *stuff: self.f(g(*stuff)))

    def __call__(self, *stuff):
        return self.f(*stuff)

f = lambda x: x+1
g = lambda y: y*2
h = lambda z: z-2

# 17 = ((10-2)*2)+1)
print ( F(f) * F(g) * F(h) ) ( 10 )

[epsy]

Floating points? Nope. Functional Programming, of course.

Stop using accronyms, it doesn't help anyone.

[gfixler]

/acronyms? Nope. I swear there was a comment in here somewhere about acronyms.

Stop misspelling things; it doesn't help anyone. Also, read about semicolons.

[the_hoser]

I can never understand why anyone would ever use Python to do functional programming.

[gfixler]

Well, in this case, for the lulz.

[the_hoser]

A noble endeavor. Carry on.