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Functional Python Programming

Functional Python Programming

By : Steven F. Lott
4 (9)
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Functional Python Programming

Functional Python Programming

4 (9)
By: Steven F. Lott

Overview of this book

This book is for developers who want to use Python to write programs that lean heavily on functional programming design patterns. You should be comfortable with Python programming, but no knowledge of functional programming paradigms is needed.
Table of Contents (18 chapters)
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17
Index

Implementing more complex descriptors


We can easily write the following commands:

@f_wrap
@g_wrap
def h(x):
    something

There's nothing in Python to stop us. This has a meaning somewhat like . However, the name is merely . Because of this potential confusion, we need to be cautious when creating functions that involve deeply nested descriptors. If our intent is simply to handle some cross-cutting concerns, then each decorator can handle a concern without creating much confusion.

If, on the other hand, we're using a decoration to create a composite function, it might also be better to use the following command:

f_g_h= f_wrap(g_wrap(h))

This clarifies as to what precisely is going on. Decorator functions don't correspond precisely with the mathematical abstraction of functions being composed. The decorator function actually contains a wrapper function that will contain the function being composed. This distinction between a function and a decorator that creates a composite from the function...

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