From 7e445b3a685b2ded2f2b06c89455c27eb773bcc8 Mon Sep 17 00:00:00 2001
From: Nicolas Le Cam <niko.lecam@gmail.com>
Date: Sun, 12 Oct 2025 03:26:13 +0200
Subject: [PATCH] enh(python) Support t-strings

Fixes #4325
---
 CHANGES.md                                     |  1 +
 src/languages/python.js                        |  8 ++++----
 test/markup/python/template-strings.expect.txt | 10 ++++++++++
 test/markup/python/template-strings.txt        | 10 ++++++++++
 4 files changed, 25 insertions(+), 4 deletions(-)
 create mode 100644 test/markup/python/template-strings.expect.txt
 create mode 100644 test/markup/python/template-strings.txt

diff --git a/CHANGES.md b/CHANGES.md
index b1413c29a5..cb84f39877 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -26,6 +26,7 @@ Core Grammars:
 - enh(json) add json5 support [Kerry Shetline][]
 - fix(css) `unicode-range` parsing, issue #4253 [Kerry Shetline][]
 - fix(csharp) Support digit separators [te-ing][]
+- enh(python) Support t-strings [Nicolas Le Cam][]
 
 Documentation:
 
diff --git a/src/languages/python.js b/src/languages/python.js
index 2604889790..ab7930c030 100644
--- a/src/languages/python.js
+++ b/src/languages/python.js
@@ -194,7 +194,7 @@ export default function(hljs) {
         relevance: 10
       },
       {
-        begin: /([fF][rR]|[rR][fF]|[fF])'''/,
+        begin: /([fFtT][rR]|[rR][fFtT]|[fFtT])'''/,
         end: /'''/,
         contains: [
           hljs.BACKSLASH_ESCAPE,
@@ -204,7 +204,7 @@ export default function(hljs) {
         ]
       },
       {
-        begin: /([fF][rR]|[rR][fF]|[fF])"""/,
+        begin: /([fFtT][rR]|[rR][fFtT]|[fFtT])"""/,
         end: /"""/,
         contains: [
           hljs.BACKSLASH_ESCAPE,
@@ -232,7 +232,7 @@ export default function(hljs) {
         end: /"/
       },
       {
-        begin: /([fF][rR]|[rR][fF]|[fF])'/,
+        begin: /([fFtT][rR]|[rR][fFtT]|[fFtT])'/,
         end: /'/,
         contains: [
           hljs.BACKSLASH_ESCAPE,
@@ -241,7 +241,7 @@ export default function(hljs) {
         ]
       },
       {
-        begin: /([fF][rR]|[rR][fF]|[fF])"/,
+        begin: /([fFtT][rR]|[rR][fFtT]|[fFtT])"/,
         end: /"/,
         contains: [
           hljs.BACKSLASH_ESCAPE,
diff --git a/test/markup/python/template-strings.expect.txt b/test/markup/python/template-strings.expect.txt
new file mode 100644
index 0000000000..ea18264ea5
--- /dev/null
+++ b/test/markup/python/template-strings.expect.txt
@@ -0,0 +1,10 @@
+<span class="hljs-string">t&quot;Hello <span class="hljs-subst">{name}</span>&quot;</span>
+<span class="hljs-string">T&quot;Hello <span class="hljs-subst">{name}</span>&quot;</span>
+<span class="hljs-string">t&quot;Hello <span class="hljs-subst">{name!r}</span>&quot;</span>
+<span class="hljs-string">t&quot;Value: <span class="hljs-subst">{value:<span class="hljs-number">.2</span>f}</span>&quot;</span>
+<span class="hljs-string">t&quot;Value: <span class="hljs-subst">{value:.{precision}</span>f}&quot;</span>
+<span class="hljs-string">t&quot;Hello <span class="hljs-subst">{name=}</span>&quot;</span>
+<span class="hljs-string">rt&#x27;Did you say &quot;<span class="hljs-subst">{trade}</span>&quot;?\n&#x27;</span>
+<span class="hljs-string">tr&#x27;Did you say &quot;<span class="hljs-subst">{trade}</span>&quot;?\n&#x27;</span>
+<span class="hljs-string">t&quot;Hello <span class="hljs-subst">{(<span class="hljs-keyword">lambda</span>: name)}</span>&quot;</span>
+<span class="hljs-string">t&quot;Hello <span class="hljs-subst">{<span class="hljs-keyword">await</span> get_name()}</span>&quot;</span>
diff --git a/test/markup/python/template-strings.txt b/test/markup/python/template-strings.txt
new file mode 100644
index 0000000000..1519e8d80b
--- /dev/null
+++ b/test/markup/python/template-strings.txt
@@ -0,0 +1,10 @@
+t"Hello {name}"
+T"Hello {name}"
+t"Hello {name!r}"
+t"Value: {value:.2f}"
+t"Value: {value:.{precision}f}"
+t"Hello {name=}"
+rt'Did you say "{trade}"?\n'
+tr'Did you say "{trade}"?\n'
+t"Hello {(lambda: name)}"
+t"Hello {await get_name()}"