Python has many string formatting styles which have been added to the language over the years. Early Python used the % operator to injected formatted values into strings. And we have string.format() which offers several powerful styles. Both were verbose and indirect, so f-strings were added in Python 3.6. But these f-strings lacked security features (think little bobby tables) and they manifested as fully-formed strings to runtime code. Today we talk about the next evolution of Python string formatting for advanced use-cases (SQL, HTML, DSLs, etc): t-strings. We have Paul Everitt, David Peck, and Jim Baker on the show to introduce this upcoming new language feature.

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Links from the show

Paul on X: @paulweveritt

Paul on Mastodon: @[email protected]

Dave Peck on Github: github.com

Jim Baker: github.com

PEP 750 – Template Strings: peps.python.org

tdom - Placeholder for future library on PyPI using PEP 750 t-strings: github.com

PEP 750: Tag Strings For Writing Domain-Specific Languages: discuss.python.org

How To Teach This: peps.python.org

PEP 501 – General purpose template literal strings: peps.python.org

Python's new t-strings: davepeck.org

PyFormat: Using % and .format() for great good!: pyformat.info

flynt: A tool to automatically convert old string literal formatting to f-strings: github.com

Examples of using t-strings as defined in PEP 750: github.com

htm.py issue: github.com

Exploits of a Mom: xkcd.com

pyparsing: github.com

Watch this episode on YouTube: youtube.com

Episode transcripts: talkpython.fm

Subscribe to Talk Python on YouTube: youtube.com

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Talk Python on Mastodon: talkpython

Michael on Bluesky: @mkennedy.codes at bsky.app

Michael on Mastodon: mkennedy