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Function Details: rfind

Description

Returns the highest index in the string where substring sub is found.

Extended Description

rfind is a Python string method that searches for the last occurrence of a substring and returns its index position. Similar to find but searches from right to left. Partners with rindex but returns -1 instead of raising error when substring not found. Works with optional start and end parameters for search range specification. Often used with string slicing and split operations. Useful in text parsing, particularly when processing file paths, URLs, or finding last occurrences of delimiters.

Read More about rfind from Python Documentation

Function Signature

Module: builtins

Class: str

Parameters

Parameter List

sub: str
start: int
end: int

Return

Returns the highest index where the substring is found, or -1 if not found.

Return Type

int

Output

Explanation

This example demonstrates the basic usage of rfind(). It finds the last occurrence of 'hello'.