Compiled too binary Python application crashes with this error: Bus error (core dumped)

Question

Problem:

My application crashes with this error: Bus error (core dumped) when I press the shutdown button in the app, but it works as expected running in Pycharm and shuts-down the computer.

Description:

I'm using Python3 and I compiled the code into a binary with Nuitka which:

Nuitka translates the Python modules into a C level program that then uses libpython and static C files of its own to execute in the same way as CPython does.

Here is the Python code in question, the code is suppose to shutdown the system and turn-off the computer:

from pydbus import SystemBus

def shutdown_system():
    bus = SystemBus()

    proxy = bus.get('org.freedesktop.login1', '/org/freedesktop/login1')
    if proxy.CanPowerOff() == 'yes':
        proxy.PowerOff(False)  # False for 'NOT interactive'

My system is Fedora 34 and I've set the app too run on startup, but it crashes still when run from a terminal.

Questions:

1. What is the cause?

2. Can I use this method, and there is something else wrong here, maybe problem with the Nuitka compiling?

3. How can I shutdown the system in Python if this is not the right method?

EDIT #1 (gdb run on dump):

If I run python3 main.py the app works and the shutdown feature works as expected.

I'm not sure if this is the core dump but here goes:

root /home/hstefansson #  gdb -c /var/lib/systemd/coredump/core.main\\x2ebin.1000.c8be2aa0de294e928f886547bbdc6d44.7775.1647193485000000 ./PycharmProjects/programAfi/main.bin
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Reading symbols from ./PycharmProjects/programAfi/main.bin...
(No debugging symbols found in ./PycharmProjects/programAfi/main.bin)
[New LWP 7775]
[New LWP 7853]
[New LWP 7852]
[New LWP 7776]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `./PycharmProjects/programAfi/main.bin'.
Program terminated with signal SIGBUS, Bus error.
#0  0x0000000000a65354 in ?? ()
[Current thread is 1 (Thread 0x7fc288b4d740 (LWP 7775))]
Missing separate debuginfos, use: dnf debuginfo-install bzip2-libs-1.0.8-6.fc34.x86_64 cairo-1.17.4-3.fc34.x86_64 cairo-gobject-1.17.4-3.fc34.x86_64 expat-2.4.4-1.fc34.x86_64 fontconfig-2.13.94-2.fc34.x86_64 freetype-2.10.4-3.fc34.x86_64 glibc-2.33-21.fc34.x86_64 gobject-introspection-1.68.0-4.fc34.x86_64 graphite2-1.3.14-7.fc34.x86_64 harfbuzz-2.7.4-3.fc34.x86_64 libX11-1.7.2-3.fc34.x86_64 libXau-1.0.9-6.fc34.x86_64 libXcursor-1.2.0-5.fc34.x86_64 libXext-1.3.4-6.fc34.x86_64 libXfixes-6.0.0-1.fc34.x86_64 libXft-2.3.3-6.fc34.x86_64 libXrender-0.9.10-14.fc34.x86_64 libbrotli-1.0.9-4.fc34.x86_64 libffi-3.1-28.fc34.x86_64 libmount-2.36.2-1.fc34.x86_64 libpng-1.6.37-10.fc34.x86_64 libselinux-3.2-1.fc34.x86_64 libuuid-2.36.2-1.fc34.x86_64 libxcb-1.13.1-7.fc34.x86_64 libxml2-2.9.13-1.fc34.x86_64 openssl-libs-1.1.1l-2.fc34.x86_64 pcre-8.44-3.fc34.1.x86_64 pixman-0.40.0-3.fc34.x86_64 python3-cairo-1.20.1-1.fc34.x86_64 python3-gobject-3.40.1-1.fc34.x86_64 python3-libs-3.9.10-1.fc34.x86_64 python3-tkinter-3.9.10-1.fc34.x86_64 sssd-client-2.5.2-2.fc34.x86_64 tk-8.6.10-6.fc34.x86_64 xz-libs-5.2.5-5.fc34.x86_64 zlib-1.2.11-26.fc34.x86_64
(gdb)

EDIT #2(Tested if working without the binary and the full code):

1. If I run python3 main.py the app works and the shutdown feature works as expected.

2. The full code:

---

import os
import subprocess
from tkinter import *
from selenium import webdriver
from pydbus import SystemBus


root = Tk()


label1 = Label(root, text="L-E-I-K-I-R")
label2 = Label(root, text="A-N-N-A-Ð!")

button1 = Button(root, padx=50, pady=10, bg="black", fg="white", command=lambda: button_click_website(website='https://kr.is/'),
                 text="KR!")
button2 = Button(root, padx=50, pady=10, command=lambda: button_click_website(website='https://www.mbl.is'), text="MORGUNBLAÐIÐ!")
button1.grid()
button2.grid()
"""Create Submit Button"""
button3 = Button(root, command=lambda: button_click_enigma(), text="ENIGMA")
button3.grid(row=2, column=0, padx=15, pady=20)

"""Create Submit Button"""
button4 = Button(root, command=lambda: button_click_play_cards(), text="SPILA SPIL", fg="white", bg="blue")
button4.grid(padx=15, pady=20)

"""Create Submit Button"""
button5 = Button(root, command=lambda: button_click_player(), text="LinkinPark Video")
button5.grid(padx=15, pady=20)

button6 = Button(root, command=lambda: button_click_play_pinball(), text="SPILA PINBALL")
button6.grid(padx=15, pady=20)

button7 = Button(root, command=lambda: button_click_website(website='https://www.google.com'), text="Google")
button7.grid(row=6, column=0, padx=15, pady=20)

button8 = Button(root, command=lambda: shutdown_system(), text="SLÖKKVA!!", bg="red")
button8.grid(row=6, column=4, padx=15, pady=20)


button9 = Button(root, command=lambda: button_click_website(website='https://www.youtube.com'), text="MYNDSKEIÐ&VIDEO")
button9.grid(row=2, column=2, padx=15, pady=20)

button10 = Button(root, command=lambda: button_click_website(website='https://www.visir.is'), text="VISIR.IS")
button10.grid(row=4, column=2, padx=15, pady=20)


button11 = Button(root, fg="white", bg="blue", command=lambda: button_click_website(website='https://www.ruv.is'),
                         text="RÚV")
button11.grid(row=6, column=3, padx=15, pady=20)

button11 = Button(root, fg="black", bg="green",
                         command=lambda: button_click_website(website='https://www.bylgjan.is'),
                         text="BYLGJAN")
button11.grid(row=4, column=3, padx=15, pady=20)


def button_click_enigma():
    list_files = subprocess.run(["enigma"])
    #label2['text'] = str(list_files)


def button_click_play_cards():
    list_files = subprocess.run(["kpat"])
    #label2['text'] = str(list_files)


def button_click_play_pinball():
    list_files = subprocess.run(["pinball"])
    #label1['text'] = str(list_files)


def button_click_website(website):
    """ handle button click event and output text from entry area"""
    driver = webdriver.Firefox(executable_path='/opt/Geckodriver/geckodriver')
    driver.get(website)
    driver.maximize_window()


def button_click_player():
    os.system(f"mpv https://www.youtube.com/watch?v=WNeLUngb-Xg")


def shutdown_system():
    bus = SystemBus()

    proxy = bus.get('org.freedesktop.login1', '/org/freedesktop/login1')
    if proxy.CanPowerOff() == 'yes':
        proxy.PowerOff(False)  # False for 'NOT interactive'


label1.grid(row=0, column=0)
label2.grid(row=1, column=1)

button1.grid(row=2, column=1)
button2.grid(row=3, column=2)


root.mainloop()

EDIT #3 (command used)

I compiled the binary with this command:

python3 -m nuitka --follow-imports main.py