Unpin numpy version

tests/requirements.txt

@@ -3,7 +3,7 @@ coverage>=5.1
 coverage-pyver-pragma>=0.2.1
 html5lib>=1.1
 importlib-metadata>=3.6.0
-numpy~=1.24.0; python_version >= "3.8"
+numpy>=1.24.0; python_version >= "3.8"
 pytest>=6.0.0
 pytest-cov>=2.8.1
 pytest-datafiles>=2.0

tests/test_core.py

@@ -33,9 +33,12 @@ def test_get_sphinx_doc_url():
 	with pytest.raises(ValueError, match="Documentation URL not found in data from PyPI."):
 		get_sphinx_doc_url("sphinx-prompt")
 
-	if sys.version_info < (3, 8):
+	if sys.version_info[:2] not in {(3, 6), (3, 8)}:
 		# Latest numpy's "Documentation" url doesn't point to Sphinx docs.
-		with pytest.raises(ValueError):
+		with pytest.raises(
+				ValueError,
+				match="objects.inv not found at url https://numpy.org/doc/objects.inv: HTTP Status 404."
+				):
 			get_sphinx_doc_url("numpy")
 	else:
 		assert re.match(r"https://numpy\.org/doc/1\.\d\d/", get_sphinx_doc_url("numpy"))