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table of contents

sharing your code
2 Modules of functions

Reusable code is great, but a shareable module is better.
By sharing your code as a Python module, you open up your code to the entire Python
community…and it’s always good to share, isn’t it? In this chapter, you’ll learn how to
create, install, and distribute your own shareable modules. You’ll then load your module
onto Python’s software sharing site on the Web, so that everyone can benefit from your
work. Along the way, you’ll pick up a few new tricks relating to Python’s functions, too.

It’s too good not to share 34
Turn your function into a module 35
Modules are everywhere 36
Comment your code 37
Prepare your distribution 40
Build your distribution 41
A quick review of your distribution 42
Import a module to use it 43
Python’s modules implement namespaces 45
Register with the PyPI website 47
Upload your code to PyPI 48
Welcome to the PyPI community 49
Control behavior with an extra argument 52
Before your write new code, think BIF 53
Python tries its best to run your code 57
Trace your code 58
Work out what’s wrong 59
Update PyPI with your new code 60
You’ve changed your API 62
nester Use optional arguments 63
Your module supports both APIs 65
Your API is still not right 66
Your module’s reputation is restored 70
nester.py
Your Python Toolbox 71
setup.py

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