Infinite sequencing number generator not work in python?

Question

I am trying to implement a nature number generator which can generator infinite numbers, my code:

def nature():
    s = 0
    while True:
        yield s
        s += 1

when I use next(nature()) , I get a sequence of 0s, why this? and how to fix it?

>>> next(nature())
0
>>> next(nature())
0
>>> next(nature())
0
>>> next(nature())
0

Answer 1

Every time you call nature() you create a new generator. Instead do this:

n = nature()
next(n)
next(n)
next(n)

Answer 2

You create a new generator every time you recall it like so; so it starts from the initial value. What you want is:

>>> n = nature()
>>> next(n)
0
>>> next(n)
1
>>> next(n)
2
>>> next(n)
3

Answer 3

您每次都在创建一个新的生成器，尝试一次创建一次并将其传递给每个下一个调用

Answer 4

Don't instance your generator over and over, for example, instance one and use it several times like this:

def nature():
    s = 0
    while True:
        yield s
        s += 1

n = nature()
for i in range(10):
    print next(n)

print "Doing another stuff... Resuming the counting"

for i in range(10):
    print next(n)