René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[TST] test_backends_interactive.py::test_figure_leak_20490 failures with py3.11/PyQt5: AttributeError: 'QShowEvent' object has no attribute 'pos'","articleBody":"### Bug summary\n\nTwo tests of the matplotlib's test suite are failing with Python 3.11.0b3:\r\n\r\n```\r\nFAILED tests/test_backends_interactive.py::test_figure_leak_20490[time_mem1-{'MPLBACKEND': 'qtagg', 'QT_API': 'PyQt5'}] - subprocess...\r\nFAILED tests/test_backends_interactive.py::test_figure_leak_20490[time_mem1-{'MPLBACKEND': 'qtcairo', 'QT_API': 'PyQt5'}] - subproce...\r\n```\n\n### Code for reproduction\n\n```python\npython3.11 -m pytest -vv --pyargs matplotlib -m \"not network\"\n```\n\n\n### Actual outcome\n\n```pytb\r\n============================================================== FAILURES ===============================================================\r\n____________________________ test_figure_leak_20490[time_mem1-{'MPLBACKEND': 'qtagg', 'QT_API': 'PyQt5'}] _____________________________\r\n[gw10] linux -- Python 3.11.0 /tmp/portage/dev-python/matplotlib-3.5.2-r3/work/matplotlib-3.5.2-python3_11/install/usr/bin/python3.11\r\n\r\nenv = {'MPLBACKEND': 'qtagg', 'QT_API': 'PyQt5'}, time_mem = (0.1, 30000000)\r\n\r\n    @pytest.mark.parametrize(\"env\", _get_testable_interactive_backends())\r\n    @pytest.mark.parametrize(\"time_mem\", [(0.0, 2_000_000), (0.1, 30_000_000)])\r\n    def test_figure_leak_20490(env, time_mem):\r\n        pytest.importorskip(\"psutil\", reason=\"psutil needed to run this test\")\r\n    \r\n        # We haven't yet directly identified the leaks so test with a memory growth\r\n        # threshold.\r\n        pause_time, acceptable_memory_leakage = time_mem\r\n        if env[\"MPLBACKEND\"] == \"macosx\":\r\n            acceptable_memory_leakage += 11_000_000\r\n    \r\n\u003e       result = _run_helper(\r\n            _test_figure_leak, str(pause_time), timeout=_test_timeout, **env\r\n        )\r\n\r\nacceptable_memory_leakage = 30000000\r\nenv        = {'MPLBACKEND': 'qtagg', 'QT_API': 'PyQt5'}\r\npause_time = 0.1\r\ntime_mem   = (0.1, 30000000)\r\n\r\n../matplotlib-3.5.2-python3_11/test-lib/matplotlib/tests/test_backends_interactive.py:464: \r\n_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _\r\n../matplotlib-3.5.2-python3_11/test-lib/matplotlib/testing/__init__.py:73: in subprocess_run_helper\r\n    proc = subprocess.run(\r\n        args       = ('0.1',)\r\n        extra_env  = {'MPLBACKEND': 'qtagg', 'QT_API': 'PyQt5'}\r\n        func       = \u003cfunction _test_figure_leak at 0x7f1c96c19760\u003e\r\n        module     = 'matplotlib.tests.test_backends_interactive'\r\n        target     = '_test_figure_leak'\r\n        timeout    = 60\r\n_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _\r\n\r\ninput = None, capture_output = False, timeout = 60, check = True\r\npopenargs = (['/tmp/portage/dev-python/matplotlib-3.5.2-r3/work/matplotlib-3.5.2-python3_11/install/usr/bin/python3.11', '-c', '\\nfrom matplotlib.tests.test_backends_interactive import _test_figure_leak\\n_test_figure_leak()\\n', '0.1'],)\r\nkwargs = {'env': {'A': 'matplotlib-3.5.2.tar.gz freetype-2.6.1.tar.gz', 'ABI': 'amd64', 'ABI_MIPS': '', 'ABI_S390': '', ...}, 'stderr': -1, 'stdout': -1, 'universal_newlines': True}\r\nprocess = \u003cPopen: returncode: -6 args: ['/tmp/portage/dev-python/matplotlib-3.5.2-r3/w...\u003e, stdout = ''\r\nstderr = 'Traceback (most recent call last):\\n  File \"/tmp/portage/dev-python/matplotlib-3.5.2-r3/work/matplotlib-3.5.2-python3...                           ^^^^^^^^^^^^^^^^^^^^^^^^^\\nAttributeError: \\'QShowEvent\\' object has no attribute \\'pos\\'\\n'\r\nretcode = -6\r\n\r\n    def run(*popenargs,\r\n            input=None, capture_output=False, timeout=None, check=False, **kwargs):\r\n        \"\"\"Run command with arguments and return a CompletedProcess instance.\r\n    \r\n        The returned instance will have attributes args, returncode, stdout and\r\n        stderr. By default, stdout and stderr are not captured, and those attributes\r\n        will be None. Pass stdout=PIPE and/or stderr=PIPE in order to capture them.\r\n    \r\n        If check is True and the exit code was non-zero, it raises a\r\n        CalledProcessError. The CalledProcessError object will have the return code\r\n        in the returncode attribute, and output \u0026 stderr attributes if those streams\r\n        were captured.\r\n    \r\n        If timeout is given, and the process takes too long, a TimeoutExpired\r\n        exception will be raised.\r\n    \r\n        There is an optional argument \"input\", allowing you to\r\n        pass bytes or a string to the subprocess's stdin.  If you use this argument\r\n        you may not also use the Popen constructor's \"stdin\" argument, as\r\n        it will be used internally.\r\n    \r\n        By default, all communication is in bytes, and therefore any \"input\" should\r\n        be bytes, and the stdout and stderr will be bytes. If in text mode, any\r\n        \"input\" should be a string, and stdout and stderr will be strings decoded\r\n        according to locale encoding, or by \"encoding\" if set. Text mode is\r\n        triggered by setting any of text, encoding, errors or universal_newlines.\r\n    \r\n        The other arguments are the same as for the Popen constructor.\r\n        \"\"\"\r\n        if input is not None:\r\n            if kwargs.get('stdin') is not None:\r\n                raise ValueError('stdin and input arguments may not both be used.')\r\n            kwargs['stdin'] = PIPE\r\n    \r\n        if capture_output:\r\n            if kwargs.get('stdout') is not None or kwargs.get('stderr') is not None:\r\n                raise ValueError('stdout and stderr arguments may not be used '\r\n                                 'with capture_output.')\r\n            kwargs['stdout'] = PIPE\r\n            kwargs['stderr'] = PIPE\r\n    \r\n        with Popen(*popenargs, **kwargs) as process:\r\n            try:\r\n                stdout, stderr = process.communicate(input, timeout=timeout)\r\n            except TimeoutExpired as exc:\r\n                process.kill()\r\n                if _mswindows:\r\n                    # Windows accumulates the output in a single blocking\r\n                    # read() call run on child threads, with the timeout\r\n                    # being done in a join() on those threads.  communicate()\r\n                    # _after_ kill() is required to collect that and add it\r\n                    # to the exception.\r\n                    exc.stdout, exc.stderr = process.communicate()\r\n                else:\r\n                    # POSIX _communicate already populated the output so\r\n                    # far into the TimeoutExpired exception.\r\n                    process.wait()\r\n                raise\r\n            except:  # Including KeyboardInterrupt, communicate handled that.\r\n                process.kill()\r\n                # We don't call process.wait() as .__exit__ does that for us.\r\n                raise\r\n            retcode = process.poll()\r\n            if check and retcode:\r\n\u003e               raise CalledProcessError(retcode, process.args,\r\n                                         output=stdout, stderr=stderr)\r\nE               subprocess.CalledProcessError: Command '['/tmp/portage/dev-python/matplotlib-3.5.2-r3/work/matplotlib-3.5.2-python3_11/install/usr/bin/python3.11', '-c', '\\nfrom matplotlib.tests.test_backends_interactive import _test_figure_leak\\n_test_figure_leak()\\n', '0.1']' died with \u003cSignals.SIGABRT: 6\u003e.\r\n\r\ncapture_output = False\r\ncheck      = True\r\ninput      = None\r\nkwargs     = {'env': \u003cstripped\u003e,\r\n 'stderr': -1,\r\n 'stdout': -1,\r\n 'universal_newlines': True}\r\npopenargs  = (['/tmp/portage/dev-python/matplotlib-3.5.2-r3/work/matplotlib-3.5.2-python3_11/install/usr/bin/python3.11',\r\n  '-c',\r\n  '\\n'\r\n  'from matplotlib.tests.test_backends_interactive import _test_figure_leak\\n'\r\n  '_test_figure_leak()\\n',\r\n  '0.1'],)\r\nprocess    = \u003cPopen: returncode: -6 args: ['/tmp/portage/dev-python/matplotlib-3.5.2-r3/w...\u003e\r\nretcode    = -6\r\nstderr     = ('Traceback (most recent call last):\\n'\r\n '  File '\r\n '\"/tmp/portage/dev-python/matplotlib-3.5.2-r3/work/matplotlib-3.5.2-python3_11/test-lib/matplotlib/backends/backend_qt.py\", '\r\n 'line 284, in enterEvent\\n'\r\n '    x, y = self.mouseEventCoords(self._get_position(event))\\n'\r\n '                                 ^^^^^^^^^^^^^^^^^^^^^^^^^\\n'\r\n \"AttributeError: 'QShowEvent' object has no attribute 'pos'\\n\")\r\nstdout     = ''\r\ntimeout    = 60\r\n\r\n/usr/lib/python3.11/subprocess.py:558: CalledProcessError\r\n___________________________ test_figure_leak_20490[time_mem1-{'MPLBACKEND': 'qtcairo', 'QT_API': 'PyQt5'}] ____________________________\r\n[gw2] linux -- Python 3.11.0 /tmp/portage/dev-python/matplotlib-3.5.2-r3/work/matplotlib-3.5.2-python3_11/install/usr/bin/python3.11\r\n\r\nenv = {'MPLBACKEND': 'qtcairo', 'QT_API': 'PyQt5'}, time_mem = (0.1, 30000000)\r\n\r\n    @pytest.mark.parametrize(\"env\", _get_testable_interactive_backends())\r\n    @pytest.mark.parametrize(\"time_mem\", [(0.0, 2_000_000), (0.1, 30_000_000)])\r\n    def test_figure_leak_20490(env, time_mem):\r\n        pytest.importorskip(\"psutil\", reason=\"psutil needed to run this test\")\r\n    \r\n        # We haven't yet directly identified the leaks so test with a memory growth\r\n        # threshold.\r\n        pause_time, acceptable_memory_leakage = time_mem\r\n        if env[\"MPLBACKEND\"] == \"macosx\":\r\n            acceptable_memory_leakage += 11_000_000\r\n    \r\n\u003e       result = _run_helper(\r\n            _test_figure_leak, str(pause_time), timeout=_test_timeout, **env\r\n        )\r\n\r\nacceptable_memory_leakage = 30000000\r\nenv        = {'MPLBACKEND': 'qtcairo', 'QT_API': 'PyQt5'}\r\npause_time = 0.1\r\ntime_mem   = (0.1, 30000000)\r\n\r\n../matplotlib-3.5.2-python3_11/test-lib/matplotlib/tests/test_backends_interactive.py:464: \r\n_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _\r\n../matplotlib-3.5.2-python3_11/test-lib/matplotlib/testing/__init__.py:73: in subprocess_run_helper\r\n    proc = subprocess.run(\r\n        args       = ('0.1',)\r\n        extra_env  = {'MPLBACKEND': 'qtcairo', 'QT_API': 'PyQt5'}\r\n        func       = \u003cfunction _test_figure_leak at 0x7f8e2ed81760\u003e\r\n        module     = 'matplotlib.tests.test_backends_interactive'\r\n        target     = '_test_figure_leak'\r\n        timeout    = 60\r\n_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _\r\n\r\ninput = None, capture_output = False, timeout = 60, check = True\r\npopenargs = (['/tmp/portage/dev-python/matplotlib-3.5.2-r3/work/matplotlib-3.5.2-python3_11/install/usr/bin/python3.11', '-c', '\\nfrom matplotlib.tests.test_backends_interactive import _test_figure_leak\\n_test_figure_leak()\\n', '0.1'],)\r\nkwargs = {'env': {'A': 'matplotlib-3.5.2.tar.gz freetype-2.6.1.tar.gz', 'ABI': 'amd64', 'ABI_MIPS': '', 'ABI_S390': '', ...}, 'stderr': -1, 'stdout': -1, 'universal_newlines': True}\r\nprocess = \u003cPopen: returncode: -6 args: ['/tmp/portage/dev-python/matplotlib-3.5.2-r3/w...\u003e, stdout = ''\r\nstderr = 'Traceback (most recent call last):\\n  File \"/tmp/portage/dev-python/matplotlib-3.5.2-r3/work/matplotlib-3.5.2-python3...                           ^^^^^^^^^^^^^^^^^^^^^^^^^\\nAttributeError: \\'QShowEvent\\' object has no attribute \\'pos\\'\\n'\r\nretcode = -6\r\n\r\n    def run(*popenargs,\r\n            input=None, capture_output=False, timeout=None, check=False, **kwargs):\r\n        \"\"\"Run command with arguments and return a CompletedProcess instance.\r\n    \r\n        The returned instance will have attributes args, returncode, stdout and\r\n        stderr. By default, stdout and stderr are not captured, and those attributes\r\n        will be None. Pass stdout=PIPE and/or stderr=PIPE in order to capture them.\r\n    \r\n        If check is True and the exit code was non-zero, it raises a\r\n        CalledProcessError. The CalledProcessError object will have the return code\r\n        in the returncode attribute, and output \u0026 stderr attributes if those streams\r\n        were captured.\r\n    \r\n        If timeout is given, and the process takes too long, a TimeoutExpired\r\n        exception will be raised.\r\n    \r\n        There is an optional argument \"input\", allowing you to\r\n        pass bytes or a string to the subprocess's stdin.  If you use this argument\r\n        you may not also use the Popen constructor's \"stdin\" argument, as\r\n        it will be used internally.\r\n    \r\n        By default, all communication is in bytes, and therefore any \"input\" should\r\n        be bytes, and the stdout and stderr will be bytes. If in text mode, any\r\n        \"input\" should be a string, and stdout and stderr will be strings decoded\r\n        according to locale encoding, or by \"encoding\" if set. Text mode is\r\n        triggered by setting any of text, encoding, errors or universal_newlines.\r\n    \r\n        The other arguments are the same as for the Popen constructor.\r\n        \"\"\"\r\n        if input is not None:\r\n            if kwargs.get('stdin') is not None:\r\n                raise ValueError('stdin and input arguments may not both be used.')\r\n            kwargs['stdin'] = PIPE\r\n    \r\n        if capture_output:\r\n            if kwargs.get('stdout') is not None or kwargs.get('stderr') is not None:\r\n                raise ValueError('stdout and stderr arguments may not be used '\r\n                                 'with capture_output.')\r\n            kwargs['stdout'] = PIPE\r\n            kwargs['stderr'] = PIPE\r\n    \r\n        with Popen(*popenargs, **kwargs) as process:\r\n            try:\r\n                stdout, stderr = process.communicate(input, timeout=timeout)\r\n            except TimeoutExpired as exc:\r\n                process.kill()\r\n                if _mswindows:\r\n                    # Windows accumulates the output in a single blocking\r\n                    # read() call run on child threads, with the timeout\r\n                    # being done in a join() on those threads.  communicate()\r\n                    # _after_ kill() is required to collect that and add it\r\n                    # to the exception.\r\n                    exc.stdout, exc.stderr = process.communicate()\r\n                else:\r\n                    # POSIX _communicate already populated the output so\r\n                    # far into the TimeoutExpired exception.\r\n                    process.wait()\r\n                raise\r\n            except:  # Including KeyboardInterrupt, communicate handled that.\r\n                process.kill()\r\n                # We don't call process.wait() as .__exit__ does that for us.\r\n                raise\r\n            retcode = process.poll()\r\n            if check and retcode:\r\n\u003e               raise CalledProcessError(retcode, process.args,\r\n                                         output=stdout, stderr=stderr)\r\nE               subprocess.CalledProcessError: Command '['/tmp/portage/dev-python/matplotlib-3.5.2-r3/work/matplotlib-3.5.2-python3_11/install/usr/bin/python3.11', '-c', '\\nfrom matplotlib.tests.test_backends_interactive import _test_figure_leak\\n_test_figure_leak()\\n', '0.1']' died with \u003cSignals.SIGABRT: 6\u003e.\r\n\r\ncapture_output = False\r\ncheck      = True\r\ninput      = None\r\nkwargs     = {'env': \u003cstripped\u003e,\r\n 'stderr': -1,\r\n 'stdout': -1,\r\n 'universal_newlines': True}\r\npopenargs  = (['/tmp/portage/dev-python/matplotlib-3.5.2-r3/work/matplotlib-3.5.2-python3_11/install/usr/bin/python3.11',\r\n  '-c',\r\n  '\\n'\r\n  'from matplotlib.tests.test_backends_interactive import _test_figure_leak\\n'\r\n  '_test_figure_leak()\\n',\r\n  '0.1'],)\r\nprocess    = \u003cPopen: returncode: -6 args: ['/tmp/portage/dev-python/matplotlib-3.5.2-r3/w...\u003e\r\nretcode    = -6\r\nstderr     = ('Traceback (most recent call last):\\n'\r\n '  File '\r\n '\"/tmp/portage/dev-python/matplotlib-3.5.2-r3/work/matplotlib-3.5.2-python3_11/test-lib/matplotlib/backends/backend_qt.py\", '\r\n 'line 284, in enterEvent\\n'\r\n '    x, y = self.mouseEventCoords(self._get_position(event))\\n'\r\n '                                 ^^^^^^^^^^^^^^^^^^^^^^^^^\\n'\r\n \"AttributeError: 'QShowEvent' object has no attribute 'pos'\\n\")\r\nstdout     = ''\r\ntimeout    = 60\r\n\r\n/usr/lib/python3.11/subprocess.py:558: CalledProcessError\r\n\r\n```\n\n### Expected outcome\n\nPassing tests ;-).\n\n### Additional information\n\nTesting on top of installed Gentoo packages. These two tests pass with Python 3.10 with the same dependency versions. The traceback looks kinda weird — what I suspect to be happening is that the method gets `QShowEvent` but is expecting something else but I have no clue why.\n\n### Operating system\n\nGentoo Linux\n\n### Matplotlib Version\n\n3.5.2\n\n### Matplotlib Backend\n\n(tests use different backends)\n\n### Python version\n\n3.11.0b3\n\n### Jupyter version\n\n6.4.12\n\n### Installation\n\nLinux package manager","author":{"url":"https://github.com/mgorny","@type":"Person","name":"mgorny"},"datePublished":"2022-07-03T10:45:39.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":10},"url":"https://github.com/23384/matplotlib/issues/23384"}