make version accessible without having to read a file

This works when krowlog is bundled into a single executable

krowlog.py

@@ -0,0 +1,67 @@
+import logging
+import signal
+from PySide6 import QtCore
+from PySide6.QtWidgets import QApplication
+from PySide6.QtCore import QTimer
+import sys
+import constants
+from src.pluginregistry import PluginRegistry
+import gettext
+from src.ui.icon import Icon
+
+__version__ = '0.2.0'
+
+gettext.install('krowlog', 'locale')
+
+logging.basicConfig(level=logging.INFO)
+log = logging.getLogger("main")
+
+
+def stop_signal(signum, _stackframe):
+    """ Handle terminate signal """
+    try:
+        log.info("Terminate signal received. %s", signum)
+        QtCore.QCoreApplication.quit()
+    except Exception:
+        log.exception("Exception occurred while terminating")
+        sys.exit(1)
+    sys.exit(0)
+
+
+if __name__ == "__main__":
+    app = QApplication(sys.argv)
+    app.setWindowIcon(Icon(constants.krow_icon))  # works only for Linux
+
+    # make icon appear in Windows
+    # see https://stackoverflow.com/questions/1551605/how-to-set-applications-taskbar-icon-in-windows-7/1552105#1552105
+    if sys.platform == 'win32' or sys.platform == 'cygwin':
+        myappid = 'krowlog'  # arbitrary string
+        import ctypes
+        ctypes.windll.shell32.SetCurrentProcessExplicitAppUserModelID(myappid)
+
+    # workaround to make signals work in QT apps.
+    # They do not work out of the box, because the main thread
+    # is running in C++ code once app.exec() is executed
+    # Forcing an empty lambda to be executed periodically gives
+    # control back to python and allows python to react to signals
+    timer = QTimer()
+    timer.timeout.connect(lambda: None)
+    timer.start(100)
+
+    # init plugins
+    PluginRegistry.load_plugin("KrowLogPlugin")
+    PluginRegistry.load_plugin("OpenFilePlugin")
+    PluginRegistry.load_plugin("LogFilePlugin")
+    PluginRegistry.load_plugin("NotesPlugin")
+    PluginRegistry.load_plugin("TimeDiffPlugin")
+    PluginRegistry.load_plugin("FilesBrowserPlugin")
+
+    window = PluginRegistry.execute_single("create_main_window")
+    window.show()
+
+    PluginRegistry.execute("after_start")
+
+    signal.signal(signal.SIGINT, stop_signal)
+    signal.signal(signal.SIGTERM, stop_signal)
+
+    app.exec()