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Python String | rfind() method with Examples

Python String rfind() method with Examples on capitalize(), center(), count(), encode(), find(), format(), index(), join(), lower(), ljust(), isupper(), istitle(), isspace(), isprintable(), isnumeric(), islower() etc.

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Python String rfind() Method

Python rfind() method finds a substring in in the string and returns the highest index. It means it returns the index of most righmost matched subtring of the string. It returns -1 if substring not found.

Signature

rfind(sub[, start[, end]])

Parameters

sub : substring to be searched.

start (optional) : starting index to start searching.

end (optional) : end index where to search stopped.

Return

It returns either index of substring or -1.

Let's see some examples of rfind() method to understand it's functionality.

Python String rfind() Method Example 1

Let's have a simple example to implement the rfind() method. It returns highest index of the substring.

# Python rfind() method example
# Variable declaration
str = "Learn Java from TheDeveloperBlog"
# calling function
str2 = str.rfind("Java")
# displaying result
print(str2)

Output:

16

Python String rfind() Method Example 2

One more example to understand the working of rfind() method.

# Python rfind() method example
# Variable declaration
str = "It is technical tutorial"
# calling function
str2 = str.rfind("t")
# displaying result
print(str2)

Output:

18

Python String rfind() Method Example 3

This method takes other three parameters including two optional. Let's provide start and end index to the method.

# Python rfind() method example
# Variable declaration
str = "It is technical tutorial"
# calling function
str2 = str.rfind("t",5) # Only starting index is passed
# displaying result
print(str2)
str2 = str.rfind("t",5,10) # Start and End both indexes are passed
print(str2)

Output:

18
6

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