Core Python Programming

10.2. Exceptions in Python

As you were going through some of the examples in the previous chapters, you no doubt noticed what happens when your program “crashes” or terminates due to unresolved errors. A “traceback” notice appears along with a notice with as much diagnostic information as the interpreter can give you, including the error name, reason, and perhaps even the line number near or exactly where the error occurred. All errors have a similar format, regardless of whether running within the Python interpreter or standard script execution, providing a consistent error interface. All errors, whether they be syntactical or logical, result from behavior incompatible with the Python interpreter and cause exceptions to be raised.

Let us take ...