At some point in your development career—probably by the time you write your first script—you will have encountered a Python error and received a Traceback message. A Traceback provides the context of the error and pinpoints the line that caused the issue. The issue itself is described as an exception, and usually provides a human-friendly message of the error.
Python has a number of built-in exceptions, the purpose of which is to help the developer in diagnosing errors in their code. A full listing of built-in exceptions can be found at https://docs.python.org/3/library/exceptions.html.
Let's look at a simple example of an exception, AttributeError, and what the Traceback looks like in this case:
>>> import math
>>> print(math.noattribute(5))
Traceback (most recent call last):
File "<stdin>", line 1, in <module...
