count, index, insert, remove, pop, extend

In [19]: c=['a','b','c','a','b','a','d']

 

In [20]: c.count(1)

Out[20]: 0

 

In [21]: c.count('a')

Out[21]: 3

 

In [22]: c.count('b')

Out[22]: 2

 

In [23]: c.index('b')

Out[23]: 1

 

In [28]: c.insert(2,0)

 

In [29]: c

Out[29]: ['a', 'b', 0, 'c', 'a', 'b', 'a', 'd']

 

In [31]: c.remove(0)

 

In [32]: c

Out[32]: ['a', 'b', 'c', 'a', 'b', 'a', 'd']

 

In [33]: c.pop()

Out[33]: 'd'

 

In [34]: c

Out[34]: ['a', 'b', 'c', 'a', 'b', 'a']

 

In [35]: c.pop(1)

Out[35]: 'b'

 

In [36]: c

Out[36]: ['a', 'c', 'a', 'b', 'a']

 

In [37]: c.extend([1,2])

 

In [38]: c

Out[38]: ['a', 'c', 'a', 'b', 'a', 1, 2]