Add flag to allow access to system Python packages (esp. dbus-python) from the virtual environment.

Author: dhs-rec

pkg/linux/build-functions.sh

@@ -63,7 +63,7 @@ _create_python_virtualenv() {
     cd "usr/${APP_NAME}" || exit
 
     # Create the blank venv
-    "${SYSTEM_PYTHON_PATH}" -m venv venv
+    "${SYSTEM_PYTHON_PATH}" -m venv --system-site-packages venv
     # shellcheck disable=SC1091
     . venv/bin/activate
 

tools/setup-python-env.sh

@@ -7,7 +7,7 @@ then
 fi
 
 echo Creating a blank environment...
-python3 -m venv venv || { echo 'ERROR: Failed to create the blank virtual env.' ; exit 1; }
+python3 -m venv --system-site-packages venv || { echo 'ERROR: Failed to create the blank virtual env.' ; exit 1; }
 
 echo Activating the virtual environment...
 . venv/bin/activate || { echo 'ERROR: Failed to activate the virtual env.' ; exit 1; }