In Python, the str.endswith() method is used to check whether a string ends with a specified substring. This method returns True if the string ends with the specified substring and False otherwise.

Syntax

str.endswith(suffix[, start[, end]])

• suffix: A string or a tuple of strings to check against the end of the string.
• start (optional): The starting index from which to check the suffix. If omitted, the check starts from the beginning of the string.
• end (optional): The ending index up to which to check the suffix. If omitted, the check goes to the end of the string.

Example Usage

1. Basic usage:

text = "Hello, world!"
result = text.endswith("world!")
print(result)  # Output: True

2. Using start and end parameters:

text = "Hello, world!"
result = text.endswith("Hello", 0, 5)  # Check within index range 0 to 5
print(result)  # Output: True

result = text.endswith("world!", 0, 12)  # Check ending from index 0 to 12
print(result)  # Output: True

3. Checking multiple suffixes:

text = "example.py"
result = text.endswith((".py", ".txt"))
print(result)  # Output: True

Summary

• Use str.endswith() to determine if a string ends with a specific substring.
• It can check for multiple suffixes and allows for optional starting and ending indices to refine the check.