Crash report
What happened?
The abort happens on normal and no-gil debug builds, release builds also hit the SystemError.
import curses curses.napms(37)
Error is:
Fatal Python error: _Py_CheckFunctionResult: a function returned a result with an exception set
Python runtime state: initialized
_curses.error: must call initscr() first
The above exception was the direct cause of the following exception:
SystemError: <built-in function napms> returned a result with an exception set
Current thread 0x00007fe41a8c3740 (most recent call first):
File "/home/fusil/python-73/curses-fatal/source.py", line 3 in <module>
Aborted
Found using fusil by @vstinner.
CPython versions tested on:
3.13, 3.14, CPython main branch
Operating systems tested on:
Linux
Output from running 'python -VV' on the command line:
Python 3.14.0a1+ experimental free-threading build (heads/main:d467d9246c, Nov 1 2024, 09:05:56) [GCC 11.4.0]