syntax revamp

plugins/mpv/pipeline_helper.py

@@ -68,7 +68,7 @@ if _ROOT not in sys.path:
 from plugins.mpv.mpv_ipc import MPVIPCClient, _windows_kill_pids, _windows_hidden_subprocess_kwargs, _windows_list_mpv_pids  # noqa: E402
 from SYS.config import load_config, reload_config  # noqa: E402
 from SYS.logger import set_debug, debug, set_thread_stream  # noqa: E402
-from SYS.repl_queue import enqueue_repl_command  # noqa: E402
+from SYS.repl_queue import enqueue_repl_command, repl_state_is_alive  # noqa: E402
 from SYS.utils import format_bytes  # noqa: E402
 from PluginCore.registry import get_plugin, get_plugin_class  # noqa: E402
 from tool.ytdlp import get_display_format_id, get_selection_format_id  # noqa: E402
@@ -628,8 +628,19 @@ def _run_op(op: str, data: Any) -> Dict[str, Any]:
                 "table": None,
             }
 
+        repo_root = _repo_root()
+        if not repl_state_is_alive(repo_root):
+            return {
+                "success": False,
+                "stdout": "",
+                "stderr": "",
+                "error": "REPL not running",
+                "table": None,
+                "queued": False,
+            }
+
         queue_path = enqueue_repl_command(
-            _repo_root(),
+            repo_root,
             command_text,
             source=source,
             metadata=metadata,