WHAT TO DO WITH EXCEPTIONS? what to do when encounter an error? what value to choose? WHERE TO USE ASSERTIONS? For information about citing these materials or our Terms of Use, …

In this lab we learn exception syntax and file interaction protocols. An formally indicates an error and terminates the program early. Some of the more common exception types are listed below, along …

Python developers may encounter the “AttributeError: module ‘collections’ has no attribute” message when trying to access a non-existent attribute in the collections module. This article addresses fixes …

StandardError AssertionError AttributeError Argument has wrong type (e.g. float([1])) Argument has wrong value

# 7.py # AttributeError exception: incorrect use of methods of a class or data type. # In this example the class Car has only defined the method move, but the # program tries execute the method stop() that …

Reason Exception occurred while attempting to populate a repeated field: (AttributeError: 'NoneType' object has no attribute 'guid64')

How can we make an object read-only in Python? def __delitem__(self, key): ValueError("Read-only!") def pop(self, key, default=None): ValueError("Read-only!")