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Python Debugging Handbook
For more examples, see "Python openpyxl Lab 1." This book is a systematic plan to debug your programs. The focus is not on the Python language, although Chapter 3 does cover the basics. Instead, my focus is always on debugging. If you’re new to Python debugging, I think this book is a good starting point. Experienced Python programmers might want to review the table of contents to see if there’s anything special that catches their interest.The sample code demonstrates lists, tuples, loops, or classes, but in the simplest form I could imagine. Chapters 1-2 outline how to set up your Python debugging environment, and establish a debugging plan as you write your code. With the Debugging Overview, you’ll learn about the Editor, Variable Explorer, and Debug Mode and Interactive Mode in the Console. We’ll look at those times when you don’t see your object in Variable Explorer, and explore why the Console traceback says “NameError.”
•Delve into Debug Mode, including basic commands, how to set a breakpoint, and examples of stepping through the code.
•Add Print Statements (and visual clues for the depth of loop statements).
•Logging for those times when print statements roll off the screen.•Use Interactive Mode with several common Console commands and two magic commands. Chapter 5 briefly looks at the types of errors you may encounter, and then in Chapter 6, you can try out your debugging knowledge. We’ll look at the syntax for retrieving object values, type information, the length of objects or data structures, arguments, and return values. Because syntax varies based on the type and length of objects, there are numerous examples for strings, numbers, tuples, lists, and dictionaries. We’ll also look at the special “None” value, unique to Python.
Chapter 7 is chock full of examples. The format for each example is the Description, Intended Outcome, Actual Result, Incorrect Code, Debugging Steps, How to Resolve the Issue, Good Code, and a Reference to earlier related topics.Finally, the Appendix-Reference chapter includes links to the Python.org docs and the iPython.readthedocs websites for more detailed information.
•Delve into Debug Mode, including basic commands, how to set a breakpoint, and examples of stepping through the code.
•Add Print Statements (and visual clues for the depth of loop statements).
•Logging for those times when print statements roll off the screen.•Use Interactive Mode with several common Console commands and two magic commands. Chapter 5 briefly looks at the types of errors you may encounter, and then in Chapter 6, you can try out your debugging knowledge. We’ll look at the syntax for retrieving object values, type information, the length of objects or data structures, arguments, and return values. Because syntax varies based on the type and length of objects, there are numerous examples for strings, numbers, tuples, lists, and dictionaries. We’ll also look at the special “None” value, unique to Python.
Chapter 7 is chock full of examples. The format for each example is the Description, Intended Outcome, Actual Result, Incorrect Code, Debugging Steps, How to Resolve the Issue, Good Code, and a Reference to earlier related topics.Finally, the Appendix-Reference chapter includes links to the Python.org docs and the iPython.readthedocs websites for more detailed information.
347 pages, Paperback
Published February 7, 2020
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