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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

The HTTP request-response model

The essential HTTP protocol is, ideally, stateless. A user agent or client can take a functional view of the protocol. We can build a client using the http.client or urllib library. An HTTP user agent essentially executes something similar to the following:

import urllib.request
with urllib.request.urlopen(""http://slott-softwarearchitect.blogspot.com"") as response:
    print(response.read())

A program like wget or curl does this at the command line; the URL is taken from the arguments. A browser does this in response to the user pointing and clicking; the URL is taken from the user's actions, in particular, the action of clicking on linked text or images.

The practical considerations of the internetworking protocols, however, lead to some implementation details which are stateful. Some of the HTTP status codes indicate that an additional action on the part of the user agent is required.

Many status codes in the 3xx range indicate...

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