YouTipPython rfind() Method | Simple Tutorial
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Python rfind() Method
The rfind() method returns the highest index in the string where the substring is found, or -1 if not found.
Syntax
str.rfind(sub[, start[, end]])Parameters
- sub: The substring to search for.
- start (optional): The starting position of the search.
- end (optional): The ending position of the search.
Return Value
Returns the highest index of the substring, or -1 if not found.
Example
text = "Hello, world! This is a test string."
index = text.rfind("test")
print(index) # Output: 21If the substring is not found:
text = "Hello, world! This is a test string."
index = text.rfind("xyz")
print(index) # Output: -1You can also specify a range to search within:
text = "Hello, world! This is a test string."
index = text.rfind("is", 10, 25)
print(index) # Output: 16Note: Unlike find(), rfind() searches from right to left and returns the last occurrence of the substring.