mcp module not found #24
Description
Facing issue -
Traceback (most recent call last):
File "D:\dev\exp\agentic\langgraph\server.py", line 1, in
from mcp.server.fastmcp import FastMCP
ModuleNotFoundError: No module named 'mcp'
added my server.py and client file for reference.
langchain_mcp_adapter version - 0.0.5
langgraph version 0.3.18
server.py
from chatbot_agentic import ToolOrientedRAGChatbot
chatbot = ToolOrientedRAGChatbot()
mcp = FastMCP("chatbot")
@mcp.tool()
def process_query(query: str) -> str:
return chatbot.process_query(query)
if __name__ == "__main__":
mcp.run(transport="stdio")
client
import asyncio
from mcp import ClientSession, StdioServerParameters
from mcp.client.stdio import stdio_client
from langchain_mcp_adapters.tools import load_mcp_tools
from langgraph.prebuilt import create_react_agent
from langchain_ollama import ChatOllama
from langchain_core.messages import HumanMessage
async def main():
model = ChatOllama(model="qwen2.5-coder", temperature=0.2)
server_params = StdioServerParameters(
command="python",
args=["server.py"]
)
async with stdio_client(server_params) as (read, write):
async with ClientSession(read, write) as session:
await session.initialize()
tools = await load_mcp_tools(session)
agent = create_react_agent(model, tools)
query = HumanMessage(content=str(input("Enter your query: ")))
response = await agent.ainvoke({"messages": [query]})
final_message = response["messages"][-1].content
print(final_message)
if __name__ == "__main__":
asyncio.run(main())