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Learning Python Networking

You're reading from   Learning Python Networking Utilize Python 3 to get network applications up and running quickly and easily

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Product type Paperback
Published in Jun 2015
Publisher
ISBN-13 9781784396008
Length 320 pages
Edition 1st Edition
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Concepts
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Toc

Table of Contents (12) Chapters Close

Preface 1. Network Programming and Python 2. HTTP and Working with the Web FREE CHAPTER 3. APIs in Action 4. Engaging with E-mails 5. Interacting with Remote Systems 6. IP and DNS 7. Programming with Sockets 8. Client and Server Applications 9. Applications for the Web A. Working with Wireshark Index

Hosting in practice


So how does this all work in practice? Well as we saw with Flask, many frameworks come with their own built-in development web servers. However, these are not recommended for use in a production environment as they're generally not designed to be used where security and scalability are important.

Currently, probably the quickest way to host a Python web application with a production quality server is with the Gunicorn server. Using our Flask application from earlier, we can get it up and running using just a few steps. First we install Gunicorn:

$ pip install gunicorn

Next we need to slightly modify our Flask app so that it's use of __builtins__ works correctly under Gunicorn. In your tinyflaskapp.py file, find the line:

objs = __builtins__.__dict__.items()

Change it to:

objs = __builtins__.items()

Now we can run Gunicorn. From within your Flask application project folder, run the following command:

$ gunicorn --bind 0.0.0.0:5000 tinyflaskapp:app

This will launch the Gunicorn...

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