test-langgraph/test_langgraph/__main__.py

52 lines
1.4 KiB
Python

from langgraph.prebuilt import create_react_agent
from langchain_ollama import ChatOllama
from typing import Annotated
from langgraph.prebuilt import ToolNode, tools_condition
from typing_extensions import TypedDict
from langchain_core.messages import HumanMessage, SystemMessage
from langgraph.graph import StateGraph, START, END
from langgraph.graph.message import add_messages
import logging
logger = logging.getLogger(__name__)
from . import tools
#MODEL = "gemma3:27b"
MODEL = "qwen3:latest"
def create_model():
available_tools = tools.get_tools()
logger.info("Available tools:")
for tool in available_tools:
logger.info("- %s", tool.name)
llm = ChatOllama(model=MODEL)
llm.bind_tools(tools=available_tools )
return create_react_agent(llm, tools=available_tools )
def main():
logging.basicConfig(level='INFO')
messages = [SystemMessage("You are a useful assistant with access to built in system tools.")]
llm = create_model()
prev_idx = 0
while True:
user_input = input("User: ")
messages.append(HumanMessage(user_input))
result = llm.invoke({
'messages': messages,
})
messages = result['messages']
for msg in messages[prev_idx:]:
print(f'{msg.type}: {msg.content}')
del msg
prev_idx = len(messages)
if __name__ == '__main__':
main()