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  • Book Overview & Buying Python Programming Blueprints
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Python Programming Blueprints

Python Programming Blueprints

By : Riti, Furtado, Pennington
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Python Programming Blueprints

Python Programming Blueprints

4 (2)
By: Riti, Furtado, Pennington

Overview of this book

Python is a very powerful, high-level, object-oriented programming language. It's known for its simplicity and huge community support. Python Programming Blueprints will help you build useful, real-world applications using Python. In this book, we will cover some of the most common tasks that Python developers face on a daily basis, including performance optimization and making web applications more secure. We will familiarize ourselves with the associated software stack and master asynchronous features in Python. We will build a weather application using command-line parsing. We will then move on to create a Spotify remote control where we'll use OAuth and the Spotify Web API. The next project will cover reactive extensions by teaching you how to cast votes on Twitter the Python way. We will also focus on web development by using the famous Django framework to create an online game store. We will then create a web-based messenger using the new Nameko microservice framework. We will cover topics like authenticating users and, storing messages in Redis. By the end of the book, you will have gained hands-on experience in coding with Python.
Table of Contents (11 chapters)
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Implementing the notification service


Now that we have everything set up, and the files that we are going to use as a template to send emails to the customers of the online (video) game store are in place in the python-blueprints S3 bucket, it is time to start implementing the notification service.

Let's go ahead and create a file called app.py in the notifier directory, and to start with, let's add some imports:

import smtplib
from http import HTTPStatus
from smtplib import SMTPAuthenticationError, SMTPRecipientsRefused

from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart

import boto3
from botocore.exceptions import ClientError

from flask import Flask
from flask import request, Response

from jinja2 import Template
import json

First, we import the JSON module so we can serialize and deserialize data. We import HTTPStatus from the HTTP module so we can use the HTTP status constants when sending responses back from the service's endpoints.

Then we import the...

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