Terry J. Reedy <[email protected]> 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
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<https://bugs.python.org/issue43048>
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