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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<h2 class="links-heading">Links from the show</h2>
<div>Guests: 
Paul on X: <a href="https://x.com/paulweveritt?featured_on=talkpython" target="_blank" >@paulweveritt</a> 
Paul on Mastodon: <a href="https://fosstodon.org/@pauleveritt" target="_blank" >@pauleveritt@fosstodon.org</a> 
Dave Peck on Github: <a href="https://github.com/davepeck/?featured_on=talkpython" target="_blank" >github.com</a> 
Jim Baker: <a href="https://github.com/jimbaker?featured_on=talkpython" target="_blank" >github.com</a> 
 
PEP 750 – Template Strings: <a href="https://peps.python.org/pep-0750/?featured_on=talkpython" target="_blank" >peps.python.org</a> 
PEP 750: Tag Strings For Writing Domain-Specific Languages: <a href="https://discuss.python.org/t/pep-750-tag-strings-for-writing-domain-specific-languages/60408?featured_on=talkpython" target="_blank" >discuss.python.org</a> 
How To Teach This: <a href="https://peps.python.org/pep-0750/#how-to-teach-this" target="_blank" >peps.python.org</a> 
PEP 501 – General purpose template literal strings: <a href="https://peps.python.org/pep-0501/?featured_on=talkpython" target="_blank" >peps.python.org</a> 
Python's new t-strings: <a href="https://davepeck.org/2025/04/11/pythons-new-t-strings/?featured_on=talkpython" target="_blank" >davepeck.org</a> 
PyFormat: Using % and .format() for great good!: <a href="https://pyformat.info?featured_on=talkpython" target="_blank" >pyformat.info</a> 
flynt: A tool to automatically convert old string literal formatting to f-strings: <a href="https://github.com/ikamensh/flynt?featured_on=talkpython" target="_blank" >github.com</a> 
Examples of using t-strings as defined in PEP 750: <a href="https://github.com/davepeck/pep750-examples/?featured_on=talkpython" target="_blank" >github.com</a> 
htm.py issue: <a href="https://github.com/jviide/htm.py/issues/11?featured_on=talkpython" target="_blank" >github.com</a> 
Exploits of a Mom: <a href="https://xkcd.com/327/?featured_on=talkpython" target="_blank" >xkcd.com</a> 
pyparsing: <a href="https://github.com/pyparsing/pyparsing?featured_on=talkpython" target="_blank" >github.com</a> 
Watch this episode on YouTube: <a href="https://www.youtube.com/watch?v=WCWNeZ_rE68" target="_blank" >youtube.com</a> 
Episode transcripts: <a href="https://talkpython.fm/episodes/transcript/505/t-strings-in-python-pep-750" target="_blank" >talkpython.fm</a> 
 
--- Stay in touch with us --- 
Subscribe to Talk Python on YouTube: <a href="https://talkpython.fm/youtube" target="_blank" >youtube.com</a> 
Talk Python on Bluesky: <a href="https://bsky.app/profile/talkpython.fm" target="_blank" >@talkpython.fm at bsky.app</a> 
Talk Python on Mastodon: <a href="https://fosstodon.org/web/@talkpython" target="_blank" >talkpython</a> 
Michael on Bluesky: <a href="https://bsky.app/profile/mkennedy.codes?featured_on=talkpython" target="_blank" >@mkennedy.codes at bsky.app</a> 
Michael on Mastodon: <a href="https://fosstodon.org/web/@mkennedy" target="_blank" >mkennedy</a> </div>

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