In [1]:

    

# lists are mutable sequences notated as []
[1, 2, 3]


    

    
Out[1]:





[1, 2, 3]

In [3]:

    

# like tuples, lists can contain any kind of object
t = [-12, 'fish', True]
t[0]


    

    
Out[3]:





-12

In [4]:

    

# indexing supports assignment
t[1] = 'clam'
t


    

    
Out[4]:





[-12, 'clam', True]

In [13]:

    

# append and binary operators grow lists
a = []
a.append(3)
a


    

    
Out[13]:





[3]

In [14]:

    

a.append(7)
a


    

    
Out[14]:





[3, 7]

In [15]:

    

a.append([5, 6, 7])
a


    

    
Out[15]:





[3, 7, [5, 6, 7]]

In [5]:

    

# lists support "in" to test for membership
5 in [5, 6, 7]


    

    
Out[5]:





True

In [6]:

    

# lists support equality tests
a = [5, 6, 7]
a == [5, 6, 7]


    

    
Out[6]:





True

In [7]:

    

# slicing access parts of lists
a = range(7)
a[2:5]


    

    
Out[7]:





[2, 3, 4]

In [8]:

    

# slicing supports assignment
x = 1
y = 2
a[x:y] = ['a','b','c']
a


    

    
Out[8]:





[0, 'a', 'b', 'c', 2, 3, 4, 5, 6]

In [9]:

    

a = list('fish')
a[1:3] = 'xx'
a


    

    
Out[9]:





['f', 'x', 'x', 'h']