Created
August 14, 2013 00:54
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| from itertools import * | |
| class Cont(object): | |
| def __init__(self, func, *args): | |
| self.args = args | |
| self.func = func | |
| self.done = False | |
| def next(self): | |
| if self.done: | |
| raise StopIteration | |
| result = self.func(*self.args) | |
| if isinstance(result, Cont): | |
| self.func = result.func | |
| self.args = result.args | |
| return result | |
| else: | |
| self.done = True | |
| return result | |
| def __iter__(self): | |
| return self | |
| def gcd(x,y, msg): | |
| print msg | |
| if y == 0: | |
| return x | |
| return Cont(gcd, y, x % y, msg) | |
| def factorial(acc, n): | |
| if n == 0: | |
| return acc | |
| else: | |
| return Cont(factorial, acc*n, n-1) | |
| foo = gcd(1345, 2332434, "lol") | |
| bar = gcd(1345, 2223150, "hey") | |
| print list(((x,y) for x,y in izip(foo, bar))) | |
| foo = gcd(1345, 2332434, "lol") | |
| bar = gcd(1345, 2223150, "hey") | |
| print list(x for x in bar for y in foo) | |
| bar = gcd(1345, 2223150, "hey") | |
| foo = gcd(1345, 2332434, "lol") | |
| print list(islice(foo, 0, 3)) | |
| print list(factorial(1,5)) |
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