November 08, 2024

New PEPs: Template Strings & External Wheel Hosting

47 minutes

Have you wanted the flexibility of f-strings but need safety checks in place? What if you could have deferred evaluation for logging or avoiding injection attacks? Christopher Trudeau is back on the show this week, bringing another batch of PyCoder’s Weekly articles and projects.

We discuss a set of recent Python Enhancement Proposals (PEPs). The idea of template strings has been under consideration for a while, and PEP 750 describes a new way forward. PEP 759 proposes a way for projects on PyPI to safely host resources on external sites using a new package upload format called a .rim file.

We share several other articles and projects from the Python community, including what didn’t make the headlines about Python 3.13, solving Sudoku with Python packaging, what’s sweet about Python’s syntactic sugar, creating database-generated columns using SQLite and Django, a discussion about mentoring, an adaptive web scraper, and a debugging tool for HTTP(S) client requests.

This episode is sponsored by Sentry.

Course Spotlight: Using Pydantic to Simplify Python Data Validation

Discover the power of Pydantic, Python’s most popular data parsing, validation, and serialization library. In this hands-on video course, you’ll learn how to make your code more robust, trustworthy, and easier to debug with Pydantic.

Topics:

00:00:00 – Introduction

00:02:08 – Python 3.14.0 Alpha 1 Released

00:02:38 – Python 3.13, What Didn’t Make the Headlines

00:05:23 – What’s up Python? 3.13 is out, t-strings look awesome

00:10:21 – Sponsor: Sentry

00:11:25 – Sudoku in Python Packaging

00:14:29 – Syntactic Sugar: Why Python Is Sweet and Pythonic

00:22:31 – Database generated columns: Django & SQLite

00:27:14 – Video Course Spotlight

00:28:39 – Mentors

00:42:23 – Scrapling: Lightning-Fast, Adaptive Web Scraping for Python

00:44:14 – httpdbg: A tool for Python developers to easily debug the HTTP(S) client requests

00:46:04 – Request for project submissions to PyCoders

00:46:59 – Thanks and goodbye

News:

Python 3.14.0 Alpha 1 Released

Show Links:

Python 3.13, What Didn’t Make the Headlines – Bite Code summarizes some of the lesser covered changes to Python in the 3.13 release, including how some of the REPL improvements made it into pdb, improvements to shutil, and small additions to the asyncio library.

What’s up Python? 3.13 is out, t-strings look awesome, dep groups come in handy…

Sudoku in Python Packaging – Simon writes about a Sudoku solver written by Konstin that uses the Python packaging mechanisms to do Sudoku puzzles. The results are output using a requirements.txt file, where sudoku-0-3==5 represents the (0,3) cell’s answer of 5.

Syntactic Sugar: Why Python Is Sweet and Pythonic – In this tutorial, you’ll learn what syntactic sugar is and how Python uses it to help you create more readable, descriptive, clean, and Pythonic code. You’ll also learn how to replace a given piece of syntactic sugar with another syntax construct.

Database generated columns: Django & SQLite – An introduction to database generated columns, using SQLite and the new GeneratedField added in Django 5.0

Discussion:

Mentors – Ryan just finished his second round of mentoring with the Djangonaut.Space program. This post talks about how you can help your mentor help you and how to be a good mentor.

Projects:

Scrapling: Lightning-Fast, Adaptive Web Scraping for Python

httpdbg: A tool for Python developers to easily debug the HTTP(S) client requests in a Python program

Additional Links:

PEP 750 – Template Strings

PEP 735 – Dependency Groups in pyproject.toml

PEP 759 – External Wheel Hosting

Episode #47: Unraveling Python’s Syntax to Its Core With Brett Cannon – The Real Python Podcast

Episode #92: Continuing to Unravel Python’s Syntactic Sugar With Brett Cannon – The Real Python Podcast

Episode #4: Learning Python Through Errors – The Real Python Podcast

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