Added back version which got removed in the previous version

src/sms_handler/server.py

@@ -105,8 +105,22 @@ def main():
     from argparse import ArgumentParser
 
     parser = ArgumentParser(description=__doc__)
-    parser.add_argument("-l", "--host", default="0.0.0.0")
+    parser.add_argument(
-    parser.add_argument("-p", "--port", type=int, default=8025)
+        "-l", "--host", type=str, default="0.0.0.0", help="Address to listen to"
+    )
+    parser.add_argument(
+        "-p", "--port", type=int, default=8025, help="Port to listen to"
+    )
+    parser.add_argument(
+        "-v", "--version", action="store_true", help="Print version and exit"
+    )
     args = parser.parse_args()
 
+    if args.version:
+        import sys
+        from importlib.metadata import version
+
+        print(version("sms_handler"))
+        sys.exit(0)
+
     run(app, host=args.host, port=args.port)