Terry J. Reedy <tjre...@udel.edu> added the comment:
With 3.9, exc.py produces for me Traceback (most recent call last): File "F:\Python\a\tem3.py", line 3, in f raise ValueError('hello') ValueError: hello During handling of the above exception, another exception occurred: Traceback (most recent call last): File "F:\Python\a\tem3.py", line 3, in f raise ValueError('hello') ValueError: hello ... During handling of the above exception, another exception occurred: Traceback (most recent call last): File "F:\Python\a\tem3.py", line 11, in <module> f() File "F:\Python\a\tem3.py", line 5, in f f() File "F:\Python\a\tem3.py", line 5, in f f() File "F:\Python\a\tem3.py", line 5, in f f() [Previous line repeated 992 more times] File "F:\Python\a\tem3.py", line 3, in f raise ValueError('hello') RecursionError: maximum recursion depth exceeded while calling a Python object During handling of the above exception, another exception occurred: Traceback (most recent call last): File "C:\Programs\Python310\lib\runpy.py", line 197, in _run_module_as_main return _run_code(code, main_globals, None, File "C:\Programs\Python310\lib\runpy.py", line 87, in _run_code exec(code, run_globals) File "F:\Python\a\tem3.py", line 14, in <module> print_exception(exc_info[0], exc_info[1], exc_info[2], None) File "C:\Programs\Python310\lib\traceback.py", line 113, in print_exception for line in TracebackException( File "C:\Programs\Python310\lib\traceback.py", line 503, in __init__ context = TracebackException( File "C:\Programs\Python310\lib\traceback.py", line 503, in __init__ context = TracebackException( File "C:\Programs\Python310\lib\traceback.py", line 503, in __init__ context = TracebackException( [Previous line repeated 494 more times] RecursionError: maximum recursion depth exceeded This ends the same way as in #42848. The patch in #42848 will appear in 3.10.0a5 in March. Guido and Irit decided not to backport at the patch is as much a refactoring as a fix. On a fresh repository build, exc.py ends with Traceback (most recent call last): File "f:\python\a\tem3.py", line 3, in f raise ValueError('hello') ValueError: hello During handling of the above exception, another exception occurred: Traceback (most recent call last): File "f:\python\a\tem3.py", line 11, in <module> f() File "f:\python\a\tem3.py", line 5, in f f() File "f:\python\a\tem3.py", line 5, in f f() File "f:\python\a\tem3.py", line 5, in f f() [Previous line repeated 995 more times] File "f:\python\a\tem3.py", line 3, in f raise ValueError('hello') RecursionError: maximum recursion depth exceeded while calling a Python object got to the finish line! I believe this is the expected improvement. ---------- nosy: +terry.reedy stage: -> resolved status: pending -> closed type: -> behavior versions: +Python 3.10 -Python 3.6, Python 3.7 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue43048> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com