René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Ugly traceback in PythonException","articleBody":"### Environment\r\n\r\n-   Pythonnet version: 2.5.0 and earlier\r\n-   Python version: 3.7 and 2.7\r\n-   Operating System: any\r\n-   .NET Runtime: any\r\n\r\n### Details\r\n\r\n-   Describe what you were trying to get done.\r\n\r\nWithin Unity, when a PythonException is thrown, we usually print the exception. It comes out looking like:\r\n```\r\nPythonException: TypeError : cannot create weak reference to 'PySideTestUI' object\r\n['  File \"\u003cstring\u003e\", line 3, in \u003cmodule\u003e/n', '  File \"/Users/bhudson/projects/com.unity.scripting.python/com.unity.scripting.python/Samples/PySideExample/PySideExample.py\", line 168, in create_or_reinitialize/n    _PYSIDE_UI = PySideTestUI()/n', '  File \"/Users/bhudson/projects/com.unity.scripting.python/com.unity.scripting.python/Samples/PySideExample/PySideExample.py\", line 54, in __init__/n    self._dialog = self.load_ui_widget(ui_path.replace(\"////\", \"/\"))/n', '  File \"/Users/bhudson/projects/com.unity.scripting.python/com.unity.scripting.python/Samples/PySideExample/PySideExample.py\", line 130, in load_ui_widget/n    ui.useCameraButton.clicked.connect(self.use_camera)/n']\r\n```\r\nAll on one line. It's very hard to read.\r\n\r\nThe pythonnet issue is that we have a list of strings that got str() called on it rather than joining them. Then a separate bug is that something is flipping backslashes to slashes but I don't think that's pythonnet's responsibility.\r\n\r\nThe reason is here: https://github.com/pythonnet/pythonnet/blob/master/src/runtime/pythonexception.cs#L53","author":{"url":"https://github.com/benoithudson","@type":"Person","name":"benoithudson"},"datePublished":"2021-01-19T03:09:05.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/1359/pythonnet/issues/1359"}