fix: fix build of html5lib by applying a patch

patch taken from html5lib/html5lib-python#594
issue html5lib/html5lib-python#593

Signed-off-by: Matthieu Gallien <matthieu.gallien@nextcloud.com>

Author: mgallien

python-modules/html5lib/594.patch

@@ -0,0 +1,94 @@
+From ba50563dce7968e53ac551ab5492b11301e7c83e Mon Sep 17 00:00:00 2001
+From: loqs <loqs@users.noreply.github.com>
+Date: Mon, 16 Mar 2026 22:33:37 +0000
+Subject: [PATCH 1/2] setup.py: except ImportError for missing pkg_resources
+
+Missing pkg_resources indicates setuptools 82 or newer which is more recent that than 18.5 so the version check using pkg_resources can safely be skipped.
+---
+ setup.py | 7 +++++--
+ 1 file changed, 5 insertions(+), 2 deletions(-)
+
+diff --git a/setup.py b/setup.py
+index 30ee0575..0aa584d1 100644
+--- a/setup.py
++++ b/setup.py
+@@ -6,9 +6,12 @@
+ 
+ from os.path import join, dirname
+ from setuptools import setup, find_packages, __version__ as setuptools_version
+-from pkg_resources import parse_version
+ 
+-import pkg_resources
++try:
++    import pkg_resources
++    from pkg_resources import parse_version
++except ImportError:
++    pkg_resources = None
+ 
+ try:
+     import _markerlib.markers
+
+From 41f8aa065909c1ee6297b05f156d271344f76b0e Mon Sep 17 00:00:00 2001
+From: loqs <loqs@users.noreply.github.com>
+Date: Mon, 16 Mar 2026 22:38:32 +0000
+Subject: [PATCH 2/2] conftest.py: Replace pkg_resources use with packaging
+
+---
+ html5lib/tests/conftest.py | 22 +++++++++++++---------
+ requirements-test.txt      |  2 ++
+ 2 files changed, 15 insertions(+), 9 deletions(-)
+
+diff --git a/html5lib/tests/conftest.py b/html5lib/tests/conftest.py
+index fffeb50c..a1f6b21d 100644
+--- a/html5lib/tests/conftest.py
++++ b/html5lib/tests/conftest.py
+@@ -2,7 +2,12 @@
+ import os.path
+ import sys
+ 
+-import pkg_resources
++from packaging.requirements import Requirement
++from packaging.markers import Marker
++try:
++    from importlib import metadata
++except ImportError:
++    import importlib_metadata as metadata
+ import pytest
+ 
+ from .tree_construction import TreeConstructionFile
+@@ -63,17 +68,16 @@ def pytest_configure(config):
+                             spec, marker = line.strip().split(";", 1)
+                         else:
+                             spec, marker = line.strip(), None
+-                        req = pkg_resources.Requirement.parse(spec)
+-                        if marker and not pkg_resources.evaluate_marker(marker):
++                        req = Requirement(spec)
++                        if marker and not Marker(marker).evaluate():
+                             msgs.append("%s not available in this environment" % spec)
+                         else:
+                             try:
+-                                installed = pkg_resources.working_set.find(req)
+-                            except pkg_resources.VersionConflict:
+-                                msgs.append("Outdated version of %s installed, need %s" % (req.name, spec))
+-                            else:
+-                                if not installed:
+-                                    msgs.append("Need %s" % spec)
++                                installed = metadata.version(req.name)
++                                if not req.specifier.contains(installed, prereleases=True):
++                                    msgs.append("Outdated version of %s installed, need %s" % (req.name, spec))
++                            except metadata.PackageNotFoundError:
++                                msgs.append("Need %s" % spec)
+ 
+         # Check cElementTree
+         import xml.etree.ElementTree as ElementTree
+diff --git a/requirements-test.txt b/requirements-test.txt
+index aca31f5e..27943155 100644
+--- a/requirements-test.txt
++++ b/requirements-test.txt
+@@ -8,3 +8,5 @@ coverage>=5.1,<6
+ pytest-expect>=1.1.0,<2
+ mock>=3.0.5,<4 ; python_version < '3.3'
+ setuptools; python_version >= '3.12'
++packaging
++importlib-metadata; python_version < '3.8'
+\ No newline at end of file

python-modules/html5lib/html5lib.py

@@ -8,6 +8,9 @@ def setTargets(self):
         self.svnTargets["master"] = ""
         self.description = "html5lib is a pure-python library for parsing HTML. It is designed to conform to the WHATWG HTML specification, as is implemented by all major web browsers"
         self.defaultTarget = "master"
+        self.patchToApply["master"] = [
+            ("594.patch", 1),
+        ]
 
 
 class Package(PipPackageBase):