I plan to commit an update to bleach soon since tinycss2 was updated to 
1.4.0 which the current version of bleach doesn't support.

This version mismatch is now a blocker for updating jupyter notebook.

Note that bleach is EOL upstream so we likely won't see any more updates 
and therefore I added an upper bound on tinycss2<1.5 in this port.

There are only 2 consumers of bleach in the tree: synapse and nbconvert. 
Both build following the bleach update although I'm not familiar with 
synapse and how to use it.

Any oks on the update below?

Index: Makefile
===================================================================
RCS file: /cvs/ports/www/py-bleach/Makefile,v
diff -u -p -u -r1.19 Makefile
--- Makefile	29 Apr 2025 10:40:29 -0000	1.19
+++ Makefile	15 May 2025 01:29:16 -0000
@@ -1,9 +1,9 @@
 COMMENT =		easy whitelist-based HTML-sanitizing tool
 
-MODPY_DISTV =	5.0.1
+# bleach is discontinued upstream
+MODPY_DISTV =		6.2.0
 DISTNAME =		bleach-${MODPY_DISTV}
 PKGNAME =		py-${DISTNAME}
-REVISION =		4
 
 CATEGORIES =		www
 
@@ -19,9 +19,9 @@ MODULES =		lang/python
 MODPY_PI =		Yes
 MODPY_PYBUILD =		setuptools
 
-RUN_DEPENDS =		devel/py-six \
-			sysutils/py-packaging \
+RUN_DEPENDS =		textproc/py-tinycss2<1.5 \
 			textproc/py-webencodings
+
 BUILD_DEPENDS =		devel/py-test-runner
 
 .include <bsd.port.mk>
Index: distinfo
===================================================================
RCS file: /cvs/ports/www/py-bleach/distinfo,v
diff -u -p -u -r1.4 distinfo
--- distinfo	3 Oct 2022 22:11:18 -0000	1.4
+++ distinfo	15 May 2025 01:29:16 -0000
@@ -1,2 +1,2 @@
-SHA256 (bleach-5.0.1.tar.gz) = DQMlXEfrm9Lyaqm7fyEHcy5+j+GVyi9kcJ/POwpKCFw=
-SIZE (bleach-5.0.1.tar.gz) = 199642
+SHA256 (bleach-6.2.0.tar.gz) = Ej6JQRi4pZn9gNPsGm1Mx85OWIKxMXp+G6abVulfmR8=
+SIZE (bleach-6.2.0.tar.gz) = 203083
Index: pkg/PLIST
===================================================================
RCS file: /cvs/ports/www/py-bleach/pkg/PLIST,v
diff -u -p -u -r1.8 PLIST
--- pkg/PLIST	29 Apr 2025 10:40:29 -0000	1.8
+++ pkg/PLIST	15 May 2025 01:29:16 -0000
@@ -23,6 +23,8 @@ lib/python${MODPY_VERSION}/site-packages
 lib/python${MODPY_VERSION}/site-packages/bleach/${MODPY_PYCACHE}parse_shim.${MODPY_PYC_MAGIC_TAG}pyc
 lib/python${MODPY_VERSION}/site-packages/bleach/${MODPY_PYCACHE}sanitizer.${MODPY_PYC_MAGIC_TAG}${MODPY_PYOEXTENSION}
 lib/python${MODPY_VERSION}/site-packages/bleach/${MODPY_PYCACHE}sanitizer.${MODPY_PYC_MAGIC_TAG}pyc
+lib/python${MODPY_VERSION}/site-packages/bleach/${MODPY_PYCACHE}six_shim.${MODPY_PYC_MAGIC_TAG}${MODPY_PYOEXTENSION}
+lib/python${MODPY_VERSION}/site-packages/bleach/${MODPY_PYCACHE}six_shim.${MODPY_PYC_MAGIC_TAG}pyc
 lib/python${MODPY_VERSION}/site-packages/bleach/_vendor/
 lib/python${MODPY_VERSION}/site-packages/bleach/_vendor/README.rst
 lib/python${MODPY_VERSION}/site-packages/bleach/_vendor/__init__.py
@@ -161,3 +163,4 @@ lib/python${MODPY_VERSION}/site-packages
 lib/python${MODPY_VERSION}/site-packages/bleach/linkifier.py
 lib/python${MODPY_VERSION}/site-packages/bleach/parse_shim.py
 lib/python${MODPY_VERSION}/site-packages/bleach/sanitizer.py
+lib/python${MODPY_VERSION}/site-packages/bleach/six_shim.py