Function dump_traceback

crates/stdlib/src/faulthandler.rs:377–400

(args: DumpTracebackArgs, vm: &VirtualMachine)

    #[pyfunction]
    fn dump_traceback(args: DumpTracebackArgs, vm: &VirtualMachine) -> PyResult<()> {
        let fd = get_fd_from_file_opt(args.file, vm)?;

        #[cfg(any(unix, windows))]
        {
            if args.all_threads {
                dump_all_threads(fd, vm);
            } else {
                puts(fd, "Stack (most recent call first):\n");
                let frames = vm.frames.borrow();
                for fp in frames.iter().rev() {
                    // SAFETY: the frame is alive while it's in the Vec
                    dump_frame_from_ref(fd, unsafe { fp.as_ref() });
                }
            }
        }

        #[cfg(not(any(unix, windows)))]
        {
            let _ = (fd, args.all_threads);
        }

        Ok(())
    }

    /// Dump tracebacks of all threads.
    #[cfg(any(unix, windows))]