New submission from Irit Katriel <iritkatr...@gmail.com>:
Background: https://github.com/python/cpython/pull/29780#issuecomment-981170548 https://github.com/python/cpython/pull/29780#issuecomment-981260365 ###################################################### import asyncio, traceback async def raise_after(fut, delay): await asyncio.sleep(delay) fut.set_exception(TypeError(42)) async def main(): loop = asyncio.get_running_loop() fut = loop.create_future() loop.create_task( raise_after(fut, 1)) print('hello ...') for i in range(3): try: print(await fut) except Exception as e: traceback.print_exception(e) asyncio.run(main()) ###################################################### Output (traceback accumulates a frame each time): hello ... Traceback (most recent call last): File "/Users/iritkatriel/src/cpython-1/as.py", line 17, in main print(await fut) ^^^^^^^^^ TypeError: 42 Traceback (most recent call last): File "/Users/iritkatriel/src/cpython-1/as.py", line 17, in main print(await fut) ^^^^^^^^^ File "/Users/iritkatriel/src/cpython-1/as.py", line 17, in main print(await fut) ^^^^^^^^^ TypeError: 42 Traceback (most recent call last): File "/Users/iritkatriel/src/cpython-1/as.py", line 17, in main print(await fut) ^^^^^^^^^ File "/Users/iritkatriel/src/cpython-1/as.py", line 17, in main print(await fut) ^^^^^^^^^ File "/Users/iritkatriel/src/cpython-1/as.py", line 17, in main print(await fut) ^^^^^^^^^ TypeError: 42 ---------- components: asyncio messages: 407265 nosy: asvetlov, gvanrossum, iritkatriel, yselivanov priority: normal severity: normal status: open title: Incorrect traceback when future's exception is raised multiple times type: behavior versions: Python 3.10, Python 3.11, Python 3.9 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue45924> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
