René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"WARNING:psyplot:Could not import plugin = psy_simple.plugin","articleBody":"#### Problem description\r\n\r\nI upgraded to Fedora 35, which uses Python 3.10 and psyplot won't start.\r\n\r\nIt seems to be related to the use of pkg_resources. On this page : https://setuptools.pypa.io/en/latest/pkg_resources.html , I see this : Use of pkg_resources is discouraged in favor of importlib.resources, importlib.metadata.\r\n\r\n\r\n```\r\n$ psyplot\r\nINFO:numexpr.utils:NumExpr defaulting to 4 threads.\r\nWARNING:psyplot.config.rcsetup:Failed to import plugin = psy_simple.plugin!\r\nWARNING:psyplot.config.rcsetup:Failed to import plugin = psy_reg.plugin!\r\nWARNING:psyplot.config.rcsetup:Failed to import plugin = psy_maps.plugin!\r\nWARNING:psyplot:Could not import plugin = psy_simple.plugin\r\nTraceback (most recent call last):\r\n  File \"/mumble/bin/psyplot\", line 8, in \u003cmodule\u003e\r\n    sys.exit(main())\r\n  File \"/mumble/lib/python3.10/site-packages/psyplot/__main__.py\", line 73, in main\r\n    parser.parse_known2func(args)\r\n  File \"/mumble/lib/python3.10/site-packages/funcargparse/__init__.py\", line 963, in parse_known2func\r\n    return func(**kws), remainder\r\n  File \"/mumble/lib/python3.10/site-packages/psyplot_gui/__init__.py\", line 284, in start_app\r\n    from psyplot_gui.main import MainWindow\r\n  File \"/mumble/lib/python3.10/site-packages/psyplot_gui/main.py\", line 54, in \u003cmodule\u003e\r\n    from psyplot_gui.console import ConsoleWidget\r\n  File \"/mumble/lib/python3.10/site-packages/psyplot_gui/console.py\", line 52, in \u003cmodule\u003e\r\n    import psyplot.project as psy\r\n  File \"/mumble/lib/python3.10/site-packages/psyplot/project.py\", line 93, in \u003cmodule\u003e\r\n    _versions = get_versions(requirements=False)\r\n  File \"/mumble/lib/python3.10/site-packages/psyplot/__init__.py\", line 139, in get_versions\r\n    ret[str(ep.module_name)] = mod.get_versions(requirements)\r\nUnboundLocalError: local variable 'mod' referenced before assignment\r\n```\r\n\r\n#### Output of ``psyplot -aV``\r\n\r\nThis won't start either.\r\n","author":{"url":"https://github.com/captcha1","@type":"Person","name":"captcha1"},"datePublished":"2021-11-15T23:55:59.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/42/psyplot/issues/42"}