dev-python/jsonpickle: enable python3.11

Signed-off-by: Andrew Ammerlaan <andrewammerlaan@gentoo.org>

dev-python/jsonpickle/files/jsonpickle-2.2.0-python3.11.patch

@@ -0,0 +1,46 @@
+diff --git a/jsonpickle/pickler.py b/jsonpickle/pickler.py
+index 3d391cb..2103e46 100644
+--- a/jsonpickle/pickler.py
++++ b/jsonpickle/pickler.py
+@@ -476,8 +476,12 @@ def _flatten_obj_instance(self, obj):
+ 
+         # Support objects with __getstate__(); this ensures that
+         # both __setstate__() and __getstate__() are implemented
+-        has_getstate = hasattr(obj, '__getstate__')
++        has_own_getstate = (
++            hasattr(type(obj), '__getstate__')
++            and type(obj).__getstate__ is not getattr(object, '__getstate__', None)
++        )
+         # not using has_method since __getstate__() is handled separately below
++        # Note: on Python 3.11+, all objects have __getstate__.
+ 
+         if has_class:
+             cls = obj.__class__
+@@ -549,7 +553,7 @@ def _flatten_obj_instance(self, obj):
+                 # check that getstate/setstate is sane
+                 if not (
+                     state
+-                    and hasattr(obj, '__getstate__')
++                    and has_own_getstate
+                     and not hasattr(obj, '__setstate__')
+                     and not isinstance(obj, dict)
+                 ):
+@@ -581,7 +585,7 @@ def _flatten_obj_instance(self, obj):
+             if has_getinitargs:
+                 data[tags.INITARGS] = self._flatten(obj.__getinitargs__())
+ 
+-        if has_getstate:
++        if has_own_getstate:
+             try:
+                 state = obj.__getstate__()
+             except TypeError:
+@@ -590,7 +594,8 @@ def _flatten_obj_instance(self, obj):
+                 self._pickle_warning(obj)
+                 return None
+             else:
+-                return self._getstate(state, data)
++                if state:
++                    return self._getstate(state, data)
+ 
+         if util.is_module(obj):
+             if self.unpicklable:

dev-python/jsonpickle/jsonpickle-2.2.0-r1.ebuild

@@ -0,0 +1,63 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+DISTUTILS_USE_PEP517=setuptools
+PYTHON_COMPAT=( python3_{8..11} )
+
+inherit distutils-r1 optfeature
+
+DESCRIPTION="Python library for serializing any arbitrary object graph into JSON"
+HOMEPAGE="
+	https://github.com/jsonpickle/jsonpickle/
+	https://pypi.org/project/jsonpickle/
+"
+SRC_URI="mirror://pypi/${PN:0:1}/${PN}/${P}.tar.gz"
+
+LICENSE="BSD"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc64 ~riscv ~x86 ~amd64-linux ~x86-linux"
+
+BDEPEND="
+	dev-python/setuptools_scm[${PYTHON_USEDEP}]
+	test? (
+		dev-python/feedparser[${PYTHON_USEDEP}]
+		dev-python/numpy[${PYTHON_USEDEP}]
+		dev-python/pandas[${PYTHON_USEDEP}]
+		dev-python/simplejson[${PYTHON_USEDEP}]
+		dev-python/sqlalchemy[${PYTHON_USEDEP}]
+		dev-python/ujson[${PYTHON_USEDEP}]
+	)
+"
+
+PATCHES=(
+	# https://github.com/jsonpickle/jsonpickle/pull/396
+	"${FILESDIR}/${P}-python3.11.patch"
+)
+
+distutils_enable_tests pytest
+
+python_prepare_all() {
+	sed -i -e 's:--flake8 --cov::' pytest.ini || die
+	distutils-r1_python_prepare_all
+}
+
+python_test() {
+	local EPYTEST_IGNORE=(
+		# unpackaged bson dependency
+		tests/bson_test.py
+		# broken when gmpy is installed
+		# https://github.com/jsonpickle/jsonpickle/issues/328
+		# https://github.com/jsonpickle/jsonpickle/issues/316
+		tests/ecdsa_test.py
+	)
+	epytest
+}
+
+pkg_postinst() {
+	# Unpackaged optional backends: yajl, demjson
+	optfeature "encoding numpy-based data" dev-python/numpy
+	optfeature "encoding pandas objects" dev-python/pandas
+	optfeature "fast JSON backend" dev-python/simplejson
+}