yield

[Gerrit Holl]

> i didnt understand the purpose of  'yield' keyword and the concept of 'generators' in python.  can someone explain me with a small example how  generators differ from normal function calls?
> kindly enlighten

You can see 'yield' as a continuable function:

def f():
    yield time.time()
    yield time.time()
    yield time.time()

now f() will return a generator, with a .next() method. Try:
g = f()
g.next()
g.next()
g.next()

on the interactive prompt, and see what happens...

yours,
Gerrit.

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