When will the else part of try-except-else be executed?alwayswhen an exception occurswhen no exception occurswhen an exception occurs in to except block

Understanding the try-except-else Structure

1. Definition of try-except-else: In Python, the try block is used to execute code that may raise an exception. If an exception occurs, the except block is executed. If no exceptions occur, the else block is executed.

2. Execution of the else Block:

   • The else block is executed only when no exceptions occur in the try block.
   • It provides a way to run code that should only happen when the code in try is successful and does not encounter any errors.

Analyzing the Options Provided

1. Always: This is incorrect because the else block is conditional on there being no exception.
2. When an exception occurs: This is incorrect as the else block does not execute when an exception is raised.
3. When no exception occurs: This is correct because the else block only runs if the try block executes without any errors.
4. When an exception occurs in the except block: This is incorrect since the else block does not run in this situation either.

Conclusion

The correct option is "when no exception occurs." The else block is a feature that allows for the execution of code that should run when everything in the try block succeeds without any interruptions.