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Practical Maya Programming with Python

You're reading from   Practical Maya Programming with Python Unleash the power of Python in Maya and unlock your creativity

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Product type Paperback
Published in Jul 2014
Publisher
ISBN-13 9781849694728
Length 352 pages
Edition 1st Edition
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Author (1):
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Robert Galanakis Robert Galanakis
Author Profile Icon Robert Galanakis
Robert Galanakis
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Table of Contents (12) Chapters Close

Preface 1. Introspecting Maya, Python, and PyMEL FREE CHAPTER 2. Writing Composable Code 3. Dealing with Errors 4. Leveraging Context Managers and Decorators in Maya 5. Building Graphical User Interfaces for Maya 6. Automating Maya from the Outside 7. Taming the Maya API 8. Unleashing the Maya API through Python 9. Becoming a Part of the Python Community A. Python Best Practices Index

Using the doctest module

All of the example code in this book that is executed at the interactive interpreter (like the String formatting example code in this appendix) was created using Python's doctest module. The doctest module allows the writing of executable test code within the docstrings of modules, classes, functions, and methods. It is a great way to not just test your code, but provide executable documentation. For example, we could create a file C:\mayapybook\pylib\doctestexample.py with the following:

def adder(a, b):
    """
    Return a added to b.

    >>> adder(1, 2)
    3
    >>> adder('a', 'b')
    'ab'
    >>> adder(1, 'b')
    Traceback (most recent call last):
    TypeError: unsupported operand type(s) for +: 'int' and 'str'
    """
    return a + b

Now if you run this file through the doctest module, it will run all the prompt-like lines and ensure...

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