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Add an additional code example under the Generators section #6

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Add an additional code example under the Generators section #6

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5d8ea86
Add fibonacci example to generators
Nov 27, 2014
edebe5e
Fix typo
Nov 27, 2014
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13 changes: 13 additions & 0 deletions source/iterators.rst
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Expand Up @@ -280,6 +280,19 @@ Lets see an example::

print take(5, squares()) # prints [1, 4, 9, 16, 25]

Another interesting example involves the generation of fibonacci numbers.
Using recursion to generate a large fibonacci number will take a very long time and requires additional space.
However, an implementation using a generator yields quick results. Consider the following::

def fibonacci_generator():
a,b = 0,1 # Or 1,1
while True:
yield a
a,b = b,a+b

fib = fibonacci_generator()

fib_nums = [fib.next() for i in xrange(100)]

Generator Expressions
---------------------
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