Remove hardcoded libpython binaries and add debug step

venv/lib/python3.12/site-packages/PyInstaller/hooks/hook-matplotlib.backends.backend_qtcairo.py

@@ -0,0 +1,16 @@
+#-----------------------------------------------------------------------------
+# Copyright (c) 2024, PyInstaller Development Team.
+#
+# Distributed under the terms of the GNU General Public License (version 2
+# or later) with exception for distributing the bootloader.
+#
+# The full license is in the file COPYING.txt, distributed with this software.
+#
+# SPDX-License-Identifier: (GPL-2.0-or-later WITH Bootloader-exception)
+#-----------------------------------------------------------------------------
+
+# This module conditionally imports PyQt6:
+# https://github.com/matplotlib/matplotlib/blob/9e18a343fb58a2978a8e27df03190ed21c61c343/lib/matplotlib/backends/backend_qtcairo.py#L24-L25
+# Suppress this import to prevent PyQt6 from being accidentally pulled in; the actually relevant Qt bindings are
+# determined by our hook for `matplotlib.backends.qt_compat` module.
+excludedimports = ['PyQt6']