With the function formatExceptionInfo (), we have found a way to learn important information about any exception from the Python sys.exc_info () function. Also, the exception patterns dictionary makes ...

Exercises Exercise 4.11: Defining a custom exception It is often good practice for libraries to define their own exceptions. This makes it easier to distinguish between Python exceptions raised in ...

In Python the automatic garbage collection works very well, but it is possible to defeat it with objects that create a reference to each other creating a “circular dependency” – see the ...

Returning exceptions instead of throwing them can make semantical sense when you have a helper-method for analyzing the situation and returning an appropriate exception which is then thrown by the ...