Add support for the new cssselect API used in :has() (#257)

parsel/csstranslator.py

@@ -38,8 +38,8 @@ def __str__(self):
 
         return path
 
-    def join(self, combiner, other):
-        super().join(combiner, other)
+    def join(self, combiner, other, *args, **kwargs):
+        super().join(combiner, other, *args, **kwargs)
         self.textnode = other.textnode
         self.attribute = other.attribute
         return self

setup.py

@@ -27,6 +27,7 @@
     install_requires=[
         "cssselect>=0.9",
         "lxml",
+        "packaging",
         "w3lib>=1.19.0",
     ],
     python_requires=">=3.7",

tests/test_selector_csstranslator.py

@@ -2,6 +2,11 @@
 Selector tests for cssselect backend
 """
 import unittest
+
+import cssselect
+import pytest
+from packaging.version import Version
+
 from parsel.csstranslator import GenericTranslator, HTMLTranslator
 from parsel import Selector
 from cssselect.parser import SelectorSyntaxError
@@ -196,3 +201,10 @@ def test_nested_selector(self):
             self.sel.css("div").css("area:last-child").extract(),
             ['<area shape="default" id="area-nohref">'],
         )
+
+    @pytest.mark.xfail(
+        Version(cssselect.__version__) < Version("1.2.0"),
+        reason="Support added in cssselect 1.2.0",
+    )
+    def test_pseudoclass_has(self):
+        self.assertEqual(self.x("p:has(b)::text"), ["lorem ipsum text"])