Irit Katriel <iritkatr...@yahoo.com> added the comment:
If you change your script to do
sys.tracebacklimit = abs(limit)
and run it with arg -3, then you get the output you expect:
C:\Users\User\src\cpython>python.bat x.py -3
Running Release|Win32 interpreter...
limit -3
from traceback module:
Traceback (most recent call last):
File "C:\Users\User\src\cpython\x.py", line 14, in x3
x2()
File "C:\Users\User\src\cpython\x.py", line 12, in x2
x1()
File "C:\Users\User\src\cpython\x.py", line 10, in x1
1 / 0
ZeroDivisionError: division by zero
from interpreter:
Traceback (most recent call last):
File "C:\Users\User\src\cpython\x.py", line 14, in x3
x2()
File "C:\Users\User\src\cpython\x.py", line 12, in x2
x1()
File "C:\Users\User\src\cpython\x.py", line 10, in x1
1 / 0
ZeroDivisionError: division by zero
The documentation for traceback mentions the possibility of using negative
limits and their meaning:
Print up to limit stack trace entries from traceback object tb (starting from
the caller’s frame) if limit is positive. Otherwise, print the last abs(limit)
entries.
https://docs.python.org/3/library/traceback.html#traceback.print_tb
----------
nosy: +iritkatriel
versions: +Python 3.10, Python 3.8, Python 3.9 -Python 3.7
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<https://bugs.python.org/issue38197>
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