Python List Methods
Methods that are available with list object in Python programming are given below.
They are accessed as list.method().
Python List Methods
append() – Add an element to the end of the list
extend() – Add all elements of a list to the another list
insert() – Insert an item at the defined index
append()
Helps us to add an element to the end of the list
#append method
n=[1,2,3,4,5]
print(n)
#[1, 2, 3, 4, 5]
n.append(6)
print(n)
#[1, 2, 3, 4, 5, 6]
n=[1,2,3,4,5] print(n) n.append(10) n.append(20) n.append(30) print(n)
Output:
[1, 2, 3, 4, 5]
[1, 2, 3, 4, 5, 10, 20, 30]
extend() :
Add all elements of a list to the another list
#extend() method
n=[1,2,3,4,5]
print(n)
Output:
[1, 2, 3, 4, 5]
n.extend([6,7,8])
print(n)
Output:
[1, 2, 3, 4, 5, 6, 7, 8]
n=[1,2,3,4,5] print(n) n.extend([10,20,30]) print(n)
Output:
[1, 2, 3, 4, 5]
[1, 2, 3, 4, 5, 10, 20, 30]
insert() :
Insert an item at the defined index
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0 |
1 |
2 |
3 |
4 |
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1 |
2 |
3 |
4 |
5 |
#insert method
Example:
n=[1,2,3,4,5]
print(n)
#Output: [1, 2, 3, 4, 5]
n.insert(1,10)
print(n)
#Output: [1, 10, 2, 3, 4, 5]
n.insert(4,40)
print(n)
#Output: [1, 10, 2, 3, 40, 4, 5]
Example:
#insert method
n=[1,2,3,4,5]
print(n)
#Output: [1, 2, 3, 4, 5]
n.insert(1,10)
print(n)
#Output:[1, 10, 2, 3, 4, 5]
Example:
n=[1,2,3,4,5]
print(n)
n.insert(2,20)
print(n)
#Output : [1, 2, 20, 3, 4, 5]
Example:
n=[1,2,3,4,5]
print(n)
#Output: [1, 2, 3, 4, 5]
n.insert(3,30)
print(n)
#Output : [1, 2, 3, 30, 4, 5]
#1 n=[1,2,3,4,5] print(n) n.insert(2,200) print(n) #2 n=[1,2,3,4,5] print(n) n.insert(4,600) print(n)
Output:
[1, 2, 3, 4, 5]
[1, 2, 200, 3, 4, 5]
[1, 2, 3, 4, 5]
[1, 2, 3, 4, 600, 5]
