Python List index & count method with Example – Python Tutorial
6 years ago Lalit Bhagtani 0
In this tutorial, we will learn about python list index and count method.
index method :
List index method is used to get the index of first occurrence of item ( passed as an argument ) in a list object. Here start is a start index and end is a end index, if values of start and end are passed as an argument then first occurrence of item is searched between these two indexes.
Syntax : < List Object >.index( < item > [ , start [ , end ] ] ) : < int >
Example:
# Python List index example
# create list object and assign it to variable l
l = ['a','b','c','d','e','b','c']
# calling index() method by passing 'b' as an argument
index = l.index('b')
# print the value of variable index
print(index)
# calling index() method by passing 'b' and starting index 2
index = l.index('b',2)
# print the value of variable index
print(index)
# calling index() method by passing 'b', 0 as starting index and 2 as ending index
index = l.index('b',0,2)
# print the value of variable index
print(index)
count method :
This method is used to count total number of occurrence of item ( passed as an argument ) in a list object.
Syntax : < List Object >.count( < item > ) : < int >
Example:
# Python List count example
# create tuple object and assign it to variable l
l = ['a','b','c','d','e','a']
# calling count() method by passing 'a' as an argument
count = l.count('a')
# print the value of variable count
print(count)
References :-
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