Chapter 17
Handling Errors in Python
IN THIS CHAPTER
Understanding Python bugs
Considering bug sources
Locating and describing Python errors
Squashing Python bugs
Chapter 16 discusses errors in code from a Haskell perspective, and some of the errors you encounter in Haskell might take you by surprise. Oddly enough, so might some of the coding techniques used in other languages that would appear as errors. (Chapter 16 also provides a good reason not to compare the bug mitigation properties of various languages in the “Reducing the number of bugs” sidebar.) Python is more traditional in its approach to errors. For example, dividing a number by zero actually does produce an error, not a special data type designed to handle the division using the value Infinity. Consequently, you may find the discussion (in the first section of this chapter) of what constitutes a bug in Python a little boring if you have worked through coding errors in other procedural languages. Even so, reading the material is a good idea so that you can better understand how Python and Haskell differ in their handling ...
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