Operation related to the list are shown in the table below where the operators + and * are used to concatenation and for the repetition of the value.

for example:

Python Expression	Results	Description
len([4,5,6])	3	Returns Length
[1, 2, 3] + [4, 5, 6,7,8]	[1, 2, 3, 4, 5, 6,7,8]	Perform Concatenation
[‘Ravi’] * 4	[‘Ravi, ‘Ravi’, ‘Ravi’, ‘Ravi’]	Perform Repetition Of value
1 in [1, 2, 3]	True	Membership
for x in [1, 2, 3,4,5,6,7]: print x,	1 2 3 4 5 6 7	Perform Iteration

In build method in python:

Python include following method by which work becomes easier:

1.len()

This method return the number of elements in the list.

#len() method count the number of elements
list1ls =[6, 'abcd'], list2ls = [13, 'xyza', 'bzara']
print ("First list length : ", len(list1ls))
print ("Second list length : ", len(list2ls))

2.max()

This method will return the maximum value element form the list.

#max() method will return max value from list
list1ls, list2ls = [123, 'xyz', 'zara', 'abc'], [456, 700, 200]
print ("Max value element of list : ", max(list1ls))
print ("Max value element of list: ", max(list2ls))

3.min()

This method will return the min value element form the list.

#min() method will return min value from list
list1ls, list2 = [123, 'df', 'ara', 'abcc'], [4456, 3700, 2200]
print ("Max value element form list1 : ", max(list1ls)
)
print ("Max value element  form list2: ", max(list2ls))

4.list()

This method will convert tuple type to list type

#list() will convert tuple from list
Anum1 = (123, 'xyz', 'zara', 'abc');
Bnum2 = list(Anum1)
print ("List elements are : ", Bnum2)

5.cmp()

This method will compare two list and return -1, 0 ,1:

if a<b

return -1

if a=b

return 0

if a>b

return 1

# Python program to demonstrate the cmp() method comparison  

# when a<b 
a = 1
2
b = 2
2
print(cmp(a, b)) 

# when a = b 
a = 23
b = 2
3
print(cmp(a, b)) 

# when a>b 
a = 3
2
b = 2
1
print(cmp(a, b))