Hi, During packaging your project for Guix I've noticed `pytest` deprication warnings: - python-pytest version: 6.2.5 ``` guix describe Generation 279 May 13 2022 15:28:57 (current) guix 7f7cc04 repository URL: https://git.savannah.gnu.org/git/guix.git branch: master commit: 7f7cc042083a759f9b136761f8f9f95ed87563ed ``` Warnings ``` =============================== warnings summary =============================== ometa/test/test_builder.py::PythonWriterTests::test_markAsTree /tmp/guix-build-python-parsley-1.3.drv-0/source/ometa/test/test_builder.py:328: DeprecationWarning: Please use assertTrue instead. self.assert_("\n tree = True\n" in writePython(g, "")) ometa/test/test_protocol.py::ParserProtocolTestCase::test_connectionEstablishes /tmp/guix-build-python-parsley-1.3.drv-0/source/ometa/test/test_protocol.py:93: DeprecationWarning: Please use assertTrue instead. self.assert_(self.protocol.receiver.connected) ometa/test/test_protocol.py::ParserProtocolTestCase::test_dataIgnoredAfterDisconnection /tmp/guix-build-python-parsley-1.3.drv-0/source/ometa/test/test_protocol.py:190: DeprecationWarning: Please use assertTrue instead. self.assert_(not transport.aborted) ometa/test/test_protocol.py::ParserProtocolTestCase::test_exceptionsRaisedFromReceiver /tmp/guix-build-python-parsley-1.3.drv-0/source/ometa/test/test_protocol.py:177: DeprecationWarning: Please use assertNotEqual instead. self.failIfEqual(self.protocol.receiver.lossReason, None) ometa/test/test_protocol.py::ParserProtocolTestCase::test_exceptionsRaisedFromReceiver /tmp/guix-build-python-parsley-1.3.drv-0/source/ometa/test/test_protocol.py:180: DeprecationWarning: Please use assertTrue instead. self.assert_(transport.aborted) ometa/test/test_protocol.py::ParserProtocolTestCase::test_parseFailure /tmp/guix-build-python-parsley-1.3.drv-0/source/ometa/test/test_protocol.py:164: DeprecationWarning: Please use assertNotEqual instead. self.failIfEqual(self.protocol.receiver.lossReason, None) ometa/test/test_protocol.py::ParserProtocolTestCase::test_parseFailure /tmp/guix-build-python-parsley-1.3.drv-0/source/ometa/test/test_protocol.py:167: DeprecationWarning: Please use assertTrue instead. self.assert_(transport.aborted) ometa/test/test_pymeta.py::MakeGrammarTest::test_brokenGrammar /tmp/guix-build-python-parsley-1.3.drv-0/source/ometa/test/test_pymeta.py:1141: DeprecationWarning: Please use assertEqual instead. self.assertEquals(e.position, 57) ometa/test/test_pymeta.py::MakeGrammarTest::test_brokenGrammar /tmp/guix-build-python-parsley-1.3.drv-0/source/ometa/test/test_pymeta.py:1142: DeprecationWarning: Please use assertEqual instead. self.assertEquals(e.error, [("message", "end of input")]) ometa/test/test_runtime.py::RuntimeTests::test_exactlyFail /tmp/guix-build-python-parsley-1.3.drv-0/source/ometa/test/test_runtime.py:57: DeprecationWarning: Please use assertEqual instead. self.assertEquals(exc.args[1], expected(None, "g")) ometa/test/test_runtime.py::RuntimeTests::test_exactlyFail /tmp/guix-build-python-parsley-1.3.drv-0/source/ometa/test/test_runtime.py:58: DeprecationWarning: Please use assertEqual instead. self.assertEquals(exc.args[0], 0) -- Docs: https://docs.pytest.org/en/stable/warnings.html ================= 307 passed, 8 skipped, 11 warnings in 5.17s ================== ```