How do you verify and validate the data coming into your Python web application? What tools and security best practices should you consider as a developer? Christopher Trudeau is back on the show this week, bringing another batch of PyCoder’s Weekly articles and projects.

We discuss the recent Real Python tutorial “Pydantic: Simplifying Data Validation in Python.” The piece covers installing the library with optional dependencies, working with base models, validating functions, and managing environment variables.

We continue our conversation about web development with another article about Python security best practices. This article covers several Python libraries and crucial steps you can take to help make your web-based applications more secure.

We also share several other articles and projects from the Python community, including a news roundup, why Python lists multiply oddly, inline run dependencies in pipx, a discussion about open-source contribution assignments, playing sounds in Python, and a Python library to access ISO country definitions.

This episode is sponsored by Mailtrap.

Course Spotlight: Using raise for Effective Exceptions

In this video course, you’ll learn how to raise exceptions in Python, which will improve your ability to efficiently handle errors and exceptional situations in your code. This way, you’ll write more reliable, robust, and maintainable code.

Topics:

00:00:00 – Introduction
00:02:40 – Python 3.12.3, Python 3.11.9, and 3.13.0a6 Released
00:03:43 – Django Bugfix Release Issued: 5.0.4
00:04:48 – PEP 738 Accepted: Adding Android as a Supported Platform
00:05:53 – EuroPython Tickets on Sale: Prague/Remote July 8-14
00:06:38 – PyCon Portugal 2024
00:07:17 – Pydantic: Simplifying Data Validation in Python
00:15:24 – Sponsor: Mailtrap
00:15:58 – Why Do Python Lists Multiply Oddly?
00:22:21 – Best Python Security Practices for Web Developers
00:34:13 – Video Course Spotlight
00:35:38 – Inline Run Dependencies in pipx 1.4.2
00:40:16 – So Your Teacher Wants You to Do Open Source
00:54:49 – nava: Play Sounds in Python
00:56:25 – pycountry: A Python library to access ISO country definitions
00:58:18 – Thanks and goodbye

News:

Python 3.12.3 and 3.13.0a6 Released
Python 3.11.9 Released
Django Bugfix Release Issued: 5.0.4
PEP 738 Accepted: Adding Android as a Supported Platform
PEP 742 Accepted: Narrowing Types With TypeIs
EuroPython Tickets on Sale: Prague/Remote July 8-14
PyCon Portugal 2024

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Projects:

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Pydantic Data Validation & Python Web Security Practices