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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
Languages
Tools
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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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Toc

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 PyMEL in a plugin that loads during startup


Maya will import plugin files that are set to auto-load very early in its startup routine, much earlier than any user-specified startup scripts. Earlier, even, than PyMEL. This means that the initialization of your plugin must not use (or even import) PyMEL if it is set to auto-load.

For example, I've included part of the deferpymel.py plugin in the following code. The rest of the code can be found with the book's examples. Notice the import pymel.core line at the top of the file.

from maya import OpenMayaMPx
import pymel.core

# ... Other code here ...

def initializePlugin(mobject):
    plugin = _toplugin(mobject)
    plugin.registerCommand(plugin_name, create_plugin)

If we start Maya, set this plugin to auto-load, and restart Maya, we should see the following in the Script Editor after Maya starts up:

# // pymel.core : Updating pymel with pre-loaded plugins: deferpymel

PyMEL was loaded but it is in an incomplete state. On import, PyMEL dynamically...

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