>>> x = [1, 2, 3]
>>> y = x[2]
>>> y += 1
>>> y
4
>>> x
[1, 2, 3]
>>> print x
[1, 2, 3]
>>> lst = [1, 2, 3]
>>> a = lst[0]
>>> b = lst[1]
>>> c = lst[2]
#The contentious parentheses below are part of a "tuple"
#We'll cover tuples next week
>>> a, b, c
(1, 2, 3)
>>> a, b, c = lst
>>> lst = [7, 8, 9]
>>> a, b, c
(1, 2, 3)
>>> a, b, c = lst
>>> a, b, c
(7, 8, 9)
>>> print a, b, c
7 8 9
>>> a = [1, 2, 3]
>>> b = [4, 5, 6]
>>> a
[1, 2, 3]
>>> b
[4, 5, 6]
>>> c = a + b
>>> c
[1, 2, 3, 4, 5, 6]
>>> c[1] = 98765
#Using concatentation makes a new list (not an alias)
>>> a
[1, 2, 3]
>>> c = a
>>> a
[1, 2, 3]
>>> c
[1, 2, 3]
#Now, we have an alias
>>> c[1] = 8282
>>> c
[1, 8282, 3]
>>> a
[1, 8282, 3]
>>> a = [1, 2, 3]
>>> b = [4, 5, a]
>>> b
[4, 5, [1, 2, 3]]
>>> c = a + b
#c is a new list (because of concatenation), but contains a reference
#to another list! This is aliasing!
>>> c
[1, 2, 3, 4, 5, [1, 2, 3]]
>>> c[0] = 44
>>> a
[1, 2, 3]
>>> c
[44, 2, 3, 4, 5, [1, 2, 3]]
>>> c[5][0] = 1000
>>> c
[44, 2, 3, 4, 5, [1000, 2, 3]]
>>> a
[1000, 2, 3]
>>> c
[44, 2, 3, 4, 5, [1000, 2, 3]]
>>> a = [1, 2, 3]
>>> c = a * 5
>>> c
[1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3]
>>> c[0] = 90210
>>> c = a + a + a + a + a
>>> 'abc' * 3
'abcabcabc'
>>> a = [1, 2, 3]
>>> c = [a] * 5
>>> c
[[1, 2, 3], [1, 2, 3], [1, 2, 3], [1, 2, 3], [1, 2, 3]]
>>> c[0][0] = 90210
>>> c
[[90210, 2, 3], [90210, 2, 3], [90210, 2, 3], [90210, 2, 3], [90210, 2, 3]]
>>> a
[90210, 2, 3]
>>> a = [1, 2, 3]
>>> b = [a] + [a]
>>> b
[[1, 2, 3], [1, 2, 3]]
>>> a = 'dan is getting tired'
>>> lst = a.split()
>>> lst
['dan', 'is', 'getting', 'tired']
>>> lst[0]
'dan'
>>> lst[1]
'is'
>>> a = [1, 2, 3]
>>> b = a[0]
>>> b
1
>>>