⚠️ raise SystemError if Python environment version is lower than 3.12

Fixes #17

Author: gy-mate

src/moodle_to_vikwikiquiz/main.py

@@ -18,6 +18,12 @@
 
 
 def main() -> None:
+    # future: remove the conditional below when https://github.com/linkedin/shiv/issues/268 is fixed
+    if version_info < (3, 12):
+        raise SystemError(
+            "This app requires Python 3.12 or later. Please upgrade it from https://www.python.org/downloads/!"
+        )
+
     args = parse_arguments()
     configure_logging(args.verbose)
     logging.getLogger(__name__).debug("Program started...")