Fixed No Qt platform plugin could be initialized error

CHANGELOG.md

@@ -1,3 +1,6 @@
+# 1.1.8 (pre-release)
+- Fixed `No Qt platform plugin could be initialized` error, mentioned in #59 by @sunrainxyz
+
 # 1.1.7
 - Added MPS GPU acceleration support for Silicon Mac, mentioned in https://github.com/denizsafak/abogen/issues/32#issuecomment-3155902040 by @jefro108. **Please read the [Mac](https://github.com/denizsafak/abogen?tab=readme-ov-file#mac) section in the documentation again, as it requires additional configuration.**
 - Added word-by-word karaoke highlighting feature by @robmckinnon in PR #65

abogen/main.py

@@ -4,6 +4,20 @@ import sys
 import platform
 import atexit
 import signal
+
+# Qt platform plugin detection (fixes #59)
+try:
+    from PyQt5.QtCore import QLibraryInfo
+    plugins = QLibraryInfo.location(QLibraryInfo.PluginsPath)
+    platform_dir = os.path.join(plugins, "platforms")
+    if os.path.isdir(platform_dir):
+        os.environ["QT_QPA_PLATFORM_PLUGIN_PATH"] = platform_dir
+        print("QT_QPA_PLATFORM_PLUGIN_PATH set to:", platform_dir)
+    else:
+        print("PyQt5 platform plugins not found at", platform_dir)
+except ImportError:
+    print("PyQt5 not installed.")
+
 from PyQt5.QtWidgets import QApplication
 from PyQt5.QtGui import QIcon
 from PyQt5.QtCore import qInstallMessageHandler, QtMsgType