December 2000
Intermediate to advanced
816 pages
16h 57m
English
Content preview from Core Python Programming
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10.1. What Are Exceptions?
10.1.1. Errors
Before we get into details about what exceptions are, let us review what errors are. In the context of software, errors are either syntactical or logical in nature. Syntax errors indicate errors with the construct of the software and cannot be executed by the interpreter or compiled correctly. These errors must be repaired before execution can occur.
Once programs are semantically correct, the only errors which remain are logical. Logical errors can either be caused by lack of or invalid input, or, in other cases, by the logic's not being able to generate, calculate, or otherwise produce the desired results based on the input. These errors are sometimes known as domain and range failures, respectively. ...
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