Print default values

src/great_ai/__main__.py

@@ -43,9 +43,9 @@ def main() -> None:
     args = parse_arguments()
     should_auto_reload = not _is_in_production_mode(logger=None)
 
-    if args.workers > 1 and should_auto_reload:
+    if args.worker_count > 1 and should_auto_reload:
         raise ArgumentValidationError(
-            "Cannot use auto-reload with multiple workers: set the `--workers=1` CLI argument,"
+            "Cannot use auto-reload with multiple worker_count: set the `--worker_count=1` CLI argument,"
             + "or set the ENVIRONMENT environment variable to `production`."
         )
 
@@ -53,7 +53,7 @@ def main() -> None:
         host=args.host,
         port=args.port,
         timeout_keep_alive=args.timeout_keep_alive,
-        workers=args.workers,
+        workers=args.worker_count,
         server_header=False,
         reload=False,
         log_config=GREAT_AI_LOGGING_CONFIG,

src/great_ai/parse_arguments.py

@@ -12,35 +12,39 @@ def parse_arguments() -> Namespace:
         help="the name of the file containing your to-be-served function such as `main.py`\n",
     )
 
+    default_host = "0.0.0.0"
     parser.add_argument(
         "--host",
         type=str,
-        help="it is passed to uvicorn which starts a server listening on this address",
+        help=f"it is passed to uvicorn which starts a server listening on this address (default: {default_host})",
-        default="0.0.0.0",
+        default=default_host,
         required=False,
     )
 
+    default_port = 6060
     parser.add_argument(
         "--port",
         type=int,
-        help="it is passed to uvicorn which starts a server listening on this port",
+        help=f"it is passed to uvicorn which starts a server listening on this port (default: {default_port})",
-        default=6060,
+        default=default_port,
         required=False,
     )
 
+    default_timeout_keep_alive = 600
     parser.add_argument(
         "--timeout_keep_alive",
         type=int,
-        help="it is passed to uvicorn which uses it for timing out requests taking longer than this many seconds",
+        help=f"it is passed to uvicorn which uses it for timing out requests taking longer than this many seconds (default: {default_timeout_keep_alive})",
         default=600,
         required=False,
     )
 
+    default_worker_count = 1
     parser.add_argument(
-        "--workers",
+        "--worker_count",
         type=int,
-        help="it is passed to uvicorn which starts this many server processes",
+        help=f"it is passed to uvicorn which starts this many server processes (default: {default_worker_count})",
-        default=1,
+        default=default_worker_count,
         required=False,
     )