What is the use of the finally block?

The finally block in Python is used to define cleanup actions that must be executed under all circumstances, regardless of whether an exception was raised or not in the try block.

Key Uses of finally:

• Releasing resources (e.g., closing files, database connections, or network sockets)
• Executing important code that must run no matter what (e.g., logging, status updates)

try:
    file = open('example.txt', 'r')
    data = file.read()
except FileNotFoundError:
    print("File not found.")
finally:
    file.close()
    print("File closed.")

In this example, the file is closed even if an exception occurs while trying to open or read it. This ensures proper resource management.