Pydantic Data Validation & Python Web Security Practices | Real Python Podcast #202
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.
👉 Links from the show: https://realpython.com/podcasts/rpp/202/
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.
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
Watch on YouTube ↗
(saves to browser)
Sign in to unlock AI tutor explanation · ⚡30
Playlist
Uploads from Real Python · Real Python · 0 of 60
← Previous
Next →
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
A better Python REPL – bpython vs python interpreter
Real Python
Introducing large-type.com – A Utility Website
Real Python
Reading Hacker News Without Wasting Tons of Time
Real Python
Forward References and Python 3 Type Hints
Real Python
Using Sublime Text as your Git Editor
Real Python
Python Code Linting and Auto-Complete for Sublime Text
Real Python
Make your Python Code More Readable with Custom Exceptions
Real Python
Write Better Tests with Sublime Text's Split Layout Feature
Real Python
How to Use Sublime Text from the Command Line
Real Python
Rename Variables with Multiple Selection in Sublime Text
Real Python
Sublime Text Settings for Writing PEP 8 Python
Real Python
Write Cleaner Python with Sublime Text's Indent Guides
Real Python
Sublime Text Whitespace Settings for Python Development
Real Python
Function Argument Unpacking in Python
Real Python
Python Code Review: Debugging and Refactoring "Conway's Game of Life" + Automated Tests
Real Python
Using "get()" to Return a Default Value from a Python Dict
Real Python
A Python Shorthand for Swapping Two Variables
Real Python
Python Code Review: Refactoring a Web Scraper, PEP 8 Style Guide Compliance, requirements.txt
Real Python
Click & Jump to Test Failures from the Command Line (iTerm2)
Real Python
Setting up Sublime Text for Python Developers
Real Python
Sublime Text + Python Guide Overview
Real Python
Python Code Review: Adding Pytest Tests to an Existing Python Web Scraper
Real Python
Type-Checking Python Programs With Type Hints and mypy
Real Python
A Shorthand for Merging Dictionaries in Python 3.5+
Real Python
Python Code Review Flask Web Security Tutorial + Virtualenvs, requirements.txt
Real Python
My Python Code Looks Ugly and Confusing – Help!
Real Python
Setting Up a Programmer Portfolio/Developer Blog – How To Get Started
Real Python
Do I Need a GitHub/GitLab/Bitbucket Profile as a Developer?
Real Python
Programmer Portfolio – Example and Walkthrough
Real Python
How to Get Your 1st Speaking Gig at a Tech Conference
Real Python
How to Build Your Public Speaking Skills as a Developer
Real Python
The Object-oriented Version of "Spaghetti Code" is "Lasagna Code" ?!
Real Python
Setting up Sublime Text for Python Developers – Lesson #1
Real Python
Cool New Features in Python 3.6
Real Python
"is" vs "==" in Python – What's the Difference? (And When to Use Each)
Real Python
Emulating switch/case Statements in Python with Dictionaries
Real Python
Python Function Argument Unpacking Tutorial (* and ** Operators)
Real Python
What Code Should I Put On My GitHub/GitLab/BitBucket Profile?
Real Python
A Crazy Python Dictionary Expression ?!
Real Python
String Conversion in Python: When to Use __repr__ vs __str__
Real Python
Method Types in Python OOP: @classmethod, @staticmethod, and Instance Methods
Real Python
Optional Arguments in Python With *args and **kwargs
Real Python
Python Context Managers and the "with" Statement (__enter__ & __exit__)
Real Python
Installing Python Packages with pip and virtualenv / venv
Real Python
"For Each" Loops in Python with enumerate() and range()
Real Python
Python Code Review: LibreOffice Automation and the Python Standard Library
Real Python
Managing Python Dependencies With Pip and Virtual Environments – Lesson #1
Real Python
Python Tutorial: List Comprehensions Step-By-Step
Real Python
Leveraging Python's Implicit "return None" Statements
Real Python
What's the meaning of underscores (_ & __) in Python variable names?
Real Python
Python Data Structures: Sets, Frozensets, and Multisets (Bags)
Real Python
Writing automated tests for Python command-line apps and scripts
Real Python
How to find great Python packages on PyPI, the Python Package Repository
Real Python
Immutable vs Mutable Objects in Python
Real Python
PyPI vs Warehouse, the Next-Generation Python Package Repository
Real Python
pep8.org — The Prettiest Way to View the PEP 8 Python Style Guide
Real Python
My Experience at PyCon 2017 in Portland
Real Python
Pylint Tutorial – How to Write Clean Python
Real Python
"Reverse a List in Python" Tutorial: Three Methods & How-to Demos
Real Python
Python Refactoring: "while True" Infinite Loops & The "input" Function
Real Python
More on: AI Security
View skill →Related AI Lessons
⚡
⚡
⚡
⚡
Big Tech firms are accelerating AI investments and integration, while regulators and companies focus on safety and responsible adoption.
Dev.to AI
Why AI Disruption Makes Crypto's Bear Market Irrelevant in 2025
Dev.to AI
Anthropic reportedly hits $1 trillion implied valuation on secondary markets
The Next Web AI
The Tokenmaxxing Debate Misses the Point
Dev.to · Aamer Mihaysi
🎓
Tutor Explanation
DeepCamp AI