hannah dong

$ python
>>> a=[1,2,3]
>>> a
[1, 2, 3]
>>> a=[1,2,'a']
>>> a
[1, 2, 'a']
>>> len(a)
3
>>> [1,2,'a']+[3,4]
[1,2,'a',3,4]
>>> a=[1,2,3]
>>> b=a
>>> b
[1,2,3]
>>> a[0]
1
>>> a[0]=13
>>> a
[13, 2, 3]
>>> b
[13, 2, 3]
>>> b=a[:]
>>> b
[13, 2, 3]
>>> a==b
True
>>> a[1:3]
>>> [2, 3]
>>> a[:-1]
[13, 2]
>>> for num in a: print num
...
13
2
3
>>> 2 in a
True
>>> 14 in a
False
>>> a.append(4)
>>> a
[13, 2, 3, 4]
>>> a.pop(0)
13
>>> a
[2, 3, 4]
>>> del a[1]
>>> a
[2, 4]
>>> b=12
>>> a=b
>>> del a
>>> b
12
>>> a=[4,2,1,6]
>>> sorted(a)
[1, 2, 4, 6]
>>> a
[4, 2, 1, 6]
>>> a=sorted(a)
>>> a
[1, 2, 4, 6]
>>> a=['ccc', 'aaa', 'd']
>>> sorted(a)
['aaa', 'ccc', 'd']
>>> sorted(a, key=len)
['d', 'ccc', 'aaa']
>>> def last(s):return s[-1]
>>> sorted(a, key=last)
['aaa', 'ccc', 'd']
>>> ':'.join(a)
'ccc:aaa:d'
>>> range(5)
[0, 1, 2, 3, 4]