fix: another trying for windows

Signed-off-by: Dennis Zhuang <killme2008@gmail.com>

Author: killme2008

src/greptimedb_mcp_server/__init__.py

@@ -1,15 +1,16 @@
 import asyncio
 import sys
 
-if sys.platform == "win32":
+# Windows: use SelectorEventLoop for HTTP transports (signal handling),
+# but keep ProactorEventLoop for stdio (pipe I/O support)
+if sys.platform == "win32" and any(t in sys.argv for t in ("sse", "streamable-http")):
     asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())
 
-if "-m" not in sys.argv:
-    from . import server
-
 
 def main():
     """Main entry point for the package."""
+    from . import server
+
     try:
         server.main()
     except KeyboardInterrupt:
@@ -19,4 +20,4 @@ def main():
 
 
 # Expose important items at package level
-__all__ = ["main", "server"]
+__all__ = ["main"]

src/greptimedb_mcp_server/server.py

@@ -1,5 +1,13 @@
 """GreptimeDB MCP Server using FastMCP API."""
 
+import asyncio
+import sys
+
+# Windows: use SelectorEventLoop for HTTP transports (signal handling),
+# but keep ProactorEventLoop for stdio (pipe I/O support)
+if sys.platform == "win32" and any(t in sys.argv for t in ("sse", "streamable-http")):
+    asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())
+
 from greptimedb_mcp_server.config import Config
 from greptimedb_mcp_server.formatter import format_results, VALID_FORMATS
 from greptimedb_mcp_server.utils import (
@@ -15,7 +23,6 @@
     audit_log,
 )
 
-import asyncio
 import json
 import logging
 import re