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>>> def times(x,y):
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>>> times(2, 4)
8
>>> times('Ni',4)
'NiNiNiNi'

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>>> x = 99
>>> def f(y):
	z = x + y
	return z

>>> f(1)
100

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>>> x = 99
>>> def g(y):
	global x
	x = x + y

	
>>> g(1)
>>> x
100

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>>> def changer(x, y):
	x = 2
	y[0] = 'spam'

	
>>> X = 1
>>> L = [1, 2]
>>> changer(X, L)
>>> X, L
(1, ['spam', 2])

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return

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>>> def multiple(x, y):
	x = 2
	y = [3, 4]
	return x, y

>>> X = 1
>>> L = [1, 2]
>>> X, L = multiple(X, L)
>>> X
2
>>> L
[3, 4]

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>>> def func(spam, eggs, toast=0, ham=0):
	print (spam, eggs, toast, ham)

	
>>> func(1,2)
(1, 2, 0, 0)
>>> func(1, ham=1, eggs=0)
(1, 0, 0, 1)
>>> func(spam=1, eggs=0)
(1, 0, 0, 0)
>>> func(toast=1, eggs=2, spam=3)
(3, 2, 1, 0)
>>> func(1, 2, 3, 4)
(1, 2, 3, 4)
>>> func(0)
Traceback (innermost last):
  File "", line 1, in ?
    func(0)
TypeError: not enough arguments; expected 2, got 1

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>>> from inter2 import intersect, union
>>> s1, s2, s3 = "SPAM", "SCAM", "SLAM"
>>> intersect(s1, s2), union(s1, s2)
(['S', 'A', 'M'], ['S', 'P', 'A', 'M', 'C'])
>>> intersect([1,2,3], (1,4))
[1]
>>> intersect(s1, s2, s3)
['S', 'A', 'M']
>>> union(s1, s2, s3)
['S', 'P', 'A', 'M', 'C', 'L']

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>>> f = lambda x, y, z: x + y + z
>>> f(1,2,3)
6

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if test:
    action, args = func1, (1,)
else:
    action, args = func2, (1, 2, 3)
...
apply(action, args)

map

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>>> counters = [1, 2, 3, 4]
>>> map(lambda x: x + 3, counters)
[4, 5, 6, 7]

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>>> list = [1, 2, 3]
>>> list = list.append(4)
>>> list
>>> list = [1, 2, 3]
>>> list.append(4)
>>> list
[1, 2, 3, 4]

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