Python String - rfind() Method
The Python rfind() method is used to find out the index number for last occurrence of specified character(s) in the given string. This method is very similar to rindex() method. Only difference is that rindex() method which gives exception error when character(s) is not found in the string and rfind() returns -1.
This method has two optional parameters also which can be used to specify starting point and end point within the string for this operation. Default values are start and end of the string.
Syntax
string.rfind(value, start, end)
Parameters
value |
Required. value of the character(s) which need to be searched in the string. |
start |
Optional. An integer specifying start position of search. default value is 0. |
end |
Optional. An integer specifying end position of search. default value is end of the string. |
Return Value
Returns the index number of last occurrence of the specified character(s) in the given string.
Example: rfind() method when value is present
In the example below, rfind() method is used to find out the index number for last occurrence of specified character(s) in the string (or given section of the string).
MyString = "Python is a programming language and learning Python is fun."
print(MyString.rfind("Python"))
print(MyString.rfind("Python", 0, 10))
The output of the above code will be:
46 0
Example: rfind() method when value is not present
The rfind() method returns -1 when the specified character(s) is not present in the string.
MyString = "Python is a programming language and learning Python is fun."
print(MyString.rfind("Python", 10, 20))
The output of the above code will be:
-1
❮ Python String Methods
