René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Raw notes from the meeting","articleBody":"## Approach\r\nRequirements from AsyncIO\r\nRequirements from Trio\r\nNarrow down to find one that works for both\r\nExtra syntax?\r\nA few API functions to unpack information?\r\nHow do you represent tracebacks?\r\n\r\n**Challenge:** it's a complicated problem space, it's important to have clear explanations for users.\r\n\r\n## Motivation\r\nExplain the problem in general. Use cases:\r\n\r\n### async/await\r\nTask groups/nurseries is *the* way to structure code.\r\n\r\n### multiprocessing\r\nCollect results from many workers.\r\n\r\n### unittest\r\nactual exception + tearDown() exception\r\n\r\n### Hypothesis\r\n\r\n## Approaches\r\n### Modify the try-except statement\r\nrun except: clauses multiple times to unpack all exceptions\r\nit's subtle: is it backwards-compatible?\r\nnew code wrapped around old code or vice versa: what will happen?\r\n\r\nHas to be within the current syntax: otherwise none of the existing code will adopt it\r\nCancelledError part of ExceptionGroup: existing asyncio code will break\r\n\r\n### Make ExceptionGroup a container of Exception\r\nhow to tie together:\r\ncorrectly handling extraction of a particular exception\r\ncorrectly handling tracebacks","author":{"url":"https://github.com/ambv","@type":"Person","name":"ambv"},"datePublished":"2019-12-16T19:46:45.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/1/exceptiongroups/issues/1"}