How to Use rfind () in Python

How to Use rfind () in Python

This article describes how to use the rfind () method in Python. It is a basic knowledge of getting started with Python. For more information, see

The rfind () method returns the last index or-1 found in the sub-str. If no such index exists, you can select to restrict the search string [beg: end].

Syntax

The syntax of the rfind () method is as follows:

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1	Str. rfind (str, beg = 0 end = len (string ))

Parameters

Str -- this option specifies the string to be searched

Beg -- this is the start index. The default value is 0.

End -- this is the end index. By default, it is equal to the length of the string.

Return Value

If this method is found, the last index is returned. Otherwise,-1 is returned.

Example

The following example shows how to use the rfind () method.

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#! /Usr/bin/python   Str = "this is really a string example... wow !!! "; Str = "is ";   Print str. rfind (str ); Print str. rfind (str, 0, 10 ); Print str. rfind (str, 10, 0 );   Print str. find (str ); Print str. find (str, 0, 10 ); Print str. find (str, 10, 0 );

When we run the above program, it will produce the following results:

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5 5 -1 2 2 -1