List Methods in Python | Set 1 (in, not in, len(), min(), max()…)

List methods are discussed in this article.

1. len() :- This function returns the length of list.

List = [1, 2, 3, 1, 2, 1, 2, 3, 2, 1] print(len(List)) Output: 10

2. min() :- This function returns the minimum element of list.

List = [2.3, 4.445, 3, 5.33, 1.054, 2.5] print(min(List)) Output: 1.054

3. max() :- This function returns the maximum element of list.

List = [2.3, 4.445, 3, 5.33, 1.054, 2.5] print(max(List)) Output: 5.33

Python3

# Python code to demonstrate the working of
# len(), min() and max()
# initializing list 1
lis = [2, 1, 3, 5, 4]

# using len() to print length of list
print ("The length of list is : ", end="")
print (len(lis))

# using min() to print minimum element of list
print ("The minimum element of list is : ", end="")
print (min(lis))

# using max() to print maximum element of list
print ("The maximum element of list is : ", end="")
print (max(lis))

Output

The length of list is : 5
The minimum element of list is : 1
The maximum element of list is : 5

Output: 

The length of list is : 5
The minimum element of list is : 1
The maximum element of list is : 5

4. index(ele, beg, end) :- This function returns the index of first occurrence of element after beg and before end. 

List = [1, 2, 3, 1, 2, 1, 2, 3, 2, 1] print(List.index(2)) Output: 1

5. count() :- This function counts the number of occurrences of elements in list.

List = [1, 2, 3, 1, 2, 1, 2, 3, 2, 1] print(List.count(1)) Output: 4

Python3

# Python code to demonstrate the working of
# index() and count()
# initializing list 1
lis = [2, 1, 3, 5, 4, 3]

# using index() to print first occurrence of 3
# prints 5
print ("The first occurrence of 3 after 3rd position is : ", end="")
print (lis.index(3, 3, 6))

# using count() to count number of occurrence of 3
print ("The number of occurrences of 3 is : ", end="")
print (lis.count(3))

Output

The first occurrence of 3 after 3rd position is : 5
The number of occurrences of 3 is : 2