Segmentation fault in "hello world" PyQt6 app on Mojave M1 mac

[Philip Queen]

Hello, 

# The Problem
I'm trying to create an executable for a simple "hello world" app built in PyQt6. I have tried the commands `pyinstaller hello_world.py`, `pyinstaller --onefile hello_world.py`, and `pyinstaller --windowed hello_world.py`, and the resulting executable always fails with a `zsh: segmentation fault`. I have also tried running it from `pyinstaller hello_world.spec` with the same result. 

# My Environment
I am using pyinstaller 5.12.0. I have also tried the download using `pip install https://github.com/pyinstaller/pyinstaller/archive/develop.zip`. I am using python 3.9.16 in a conda environment.
I have an M1 (arm64) mac running Monterey 12.6.2

# Additional Info
I have also tried running the above commands using the code from this conversation, where a user was able to get pyinstaller working with a pyqt6 gui on a Mojave, M1 mac: https://groups.google.com/g/pyinstaller/c/9lzdMY1eSrs/m/FyJoE9ljDwAJ

Let me know if there's any additional info that would help debug. I've tried all of the debugging steps I can find, but can't get off the ground with a working pyqt6 app.

# Files used
hello_world.py:
```
import sys
from PyQt6.QtWidgets import QApplication, QLabel, QWidget

app = QApplication(sys.argv)

window = QWidget()
window.setWindowTitle("Hello World")
window.setGeometry(100, 100, 300, 100)

hello_label = QLabel("<h1>Hello World!</h1>", parent=window)
hello_label.move(75, 30)

window.show()

sys.exit(app.exec())
```

hello_world.spec:
```
# -*- mode: python ; coding: utf-8 -*-


block_cipher = None


a = Analysis(
    ['hello_world.py'],
    pathex=[],
    binaries=[],
    datas=[],
    hiddenimports=['PyQt6.QtWidgets'],
    hookspath=[],
    hooksconfig={},
    runtime_hooks=[],
    excludes=[],
    win_no_prefer_redirects=False,
    win_private_assemblies=False,
    cipher=block_cipher,
    noarchive=False,
)
pyz = PYZ(a.pure, a.zipped_data, cipher=block_cipher)

exe = EXE(
    pyz,
    a.scripts,
    a.binaries,
    a.zipfiles,
    a.datas,
    [],
    name='hello_world',
    debug=True,
    bootloader_ignore_signals=False,
    strip=False,
    upx=True,
    upx_exclude=[],
    runtime_tmpdir=None,
    console=True,
    disable_windowed_traceback=False,
    argv_emulation=False,
    target_arch=None,
    codesign_identity=None,
    entitlements_file=None,
)
```

[bwoodsend]

PyQt6 doesn't support macOS < 11.0 now. And PyInstaller doesn't support macOS<10.15 unless you compile it from source. If you want to support old macOS versions, you should build on old macOS versions so that these issues are easy to diagnose.

[Philip Queen]

Hi thanks for the response. Google didn't email me like I thought it would so I missed it, my apologies.

As I said in my original message though, I'm trying and failing to build on macOS=12.6.2, so I'm not too worried about the minimum support you mentioned. I would just like to be able to use pyinstaller to bundle my pyqt app, and it its segfaulting on even the most basic pyqt app.

[Jurica Bacurin]

Hi,

I was also having trouble with that issue and finally yesterday found this issue on pyinstallers github issues: https://github.com/pyinstaller/pyinstaller/issues/7789

The latest pyinstaller release seems to process the Qt .framework bundles which leads to a broken Qt in the created package.

After switching to the develop branch and rebuilding the bootloader I can create app bundles with python 3.11 and PyQt 6.5.2 that work.

Hope this helps.

[Philip Queen]

Thanks Jurica, that seems to be the exact problem I was facing!

Cheers!