How to Use rfind () in Python

This article describes how to use the rfind () method in Python. It is the basic knowledge in getting started with Python. For more information, see rfind () method to return the last index or-1 found in the sub-str. If no such index exists, you can select to restrict the string [beg: end].
Syntax

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

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.

#! /Usr/bin/pythonstr = "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:

55 to 122-1