CBSE Class 11: Python List 11

More method in list

Making a copy of a list

a=[1,2,3,4,5]
b=a
print(a)
print(b)

Output:

[1, 2, 3, 4, 5]
[1, 2, 3, 4, 5]

Function copy() :

This function helps us to copy a list to another list

a=[1,2,3,4,5]
b=a.copy()
print(a)
print(b)

Output:

[1, 2, 3, 4, 5]
[1, 2, 3, 4, 5]

Function len()

This function helps us to find total elements in the list.

a=[1,2,3,4,5]
print(a)
print(len(a))

Output:

[1, 2, 3, 4, 5]
5

n=[‘a’,’b’,’c’]
print(n)
print(“total elements = “,len(n))

Output:

[‘a’, ‘b’, ‘c’]
total elements = 3

Function index():

This function returns the index of the first matched item/element from the list.

syntax:
list.index(item)

n=[1,2,3,4,5,6,7]
print(n)
print(n.index(5))

Output:

[1, 2, 3, 4, 5, 6, 7]
4

n=[1,2,3,4,5,6,7]
print(n)
print(n.index(2))

Output:

[1, 2, 3, 4, 5, 6, 7]
1

Function sorted():

This function takes the name of a list as an argument and returns a new sorted list with sorted elements.

syntax:
list1=sorted(list2)

a=[2,6,5,1,4]
print(a)
b=sorted(a)
print(b)

Output:

[2, 6, 5, 1, 4]
[1, 2, 4, 5, 6]

function sort():
This function helps us to sort the elements of a list.

syntax:
list.sort()

a=[2,6,5,1,4]
print(a)
a.sort()
print(a)

Output:

[2, 6, 5, 1, 4]
[1, 2, 4, 5, 6]

Function max()

This function helps us to find the largest element from the list elements.

syntax:
max(list)

a=[2,6,5,1,4,45,65,3,23]
print(a)
print(max(a))

Output:

[2, 6, 5, 1, 4, 45, 65, 3, 23]
65

Function min()

This function helps us to find the lowest element from the list elements.

syntax:
min(list)

a=[2,6,5,1,4,45,65,3,23]
print(a)
print(min(a))

Output:

[2, 6, 5, 1, 4, 45, 65, 3, 23]
1

Function sum()

This function helps us to find the sum of all element in the list elements.

syntax:
sum(list)

a=[2,6,5,1,4,45,65,3,23]
print(a)
print(sum(a))

Output:

[2, 6, 5, 1, 4, 45, 65, 3, 23]
154

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