from pydantic.schema import model_schema

@classmethod
    def create_prompt(
            cls,
            tools: Sequence[BaseTool],
            prompt: str = None,
            input_variables: Optional[List[str]] = None,
            memory_prompts: Optional[List[BasePromptTemplate]] = None,
    ) -> BasePromptTemplate:
        tools_json = []
        tool_names = []
        for tool in tools:
            tool_schema = model_schema(tool.args_schema) if tool.args_schema else {}
            simplified_config_langchain = {
                "name": tool.name,
                "description": tool.description,
                "parameters": tool_schema.get("properties", {})
            }
            tools_json.append(simplified_config_langchain)
            tool_names.append(tool.name)
        formatted_tools = "n".join([
            f"{tool['name']}: {tool['description']}, args: {tool['parameters']}"
            for tool in tools_json
        ])
        formatted_tools = formatted_tools.replace("'", "\'").replace("{", "{{").replace("}", "}}")
        template = prompt.format(tool_names=tool_names,
                                 tools=formatted_tools,
                                 history="None",
                                 input="{input}",
                                 agent_scratchpad="{agent_scratchpad}")

        if input_variables is None:
            input_variables = ["input", "agent_scratchpad"]
        _memory_prompts = memory_prompts or []
        messages = [
            SystemMessagePromptTemplate.from_template(template),
            *_memory_prompts,
        ]
        return ChatPromptTemplate(input_variables=input_variables, messages=messages)

Code after modification

model_schema can be used normally in pydantic1.0, but it is deprecated in pydantic2.0. Is there any replacement plan?

Error message:

/home/xqxls/git/Langchain-Chatchat/venv/lib/python3.11/site-packages/pydantic/_internal/_config.py:334: UserWarning: Valid config keys have changed in V2:

• ‘schema_extra’ has been renamed to ‘json_schema_extra’
  warnings.warn(message, UserWarning)
  /home/xqxls/git/Langchain-Chatchat/venv/lib/python3.11/site-packages/pydantic/_internal/fields.py:160: UserWarning: Field “model_name” has conflict with protected namespace “model“.

You may be able to resolve this warning by setting model_config['protected_namespaces'] = ().
warnings.warn(
Process API Server:
Traceback (most recent call last):
File “/home/xqxls/anaconda3/lib/python3.11/multiprocessing/process.py”, line 314, in _bootstrap
self.run()
File “/home/xqxls/anaconda3/lib/python3.11/multiprocessing/process.py”, line 108, in run
self._target(*self._args, **self._kwargs)
File “/home/xqxls/git/Langchain-Chatchat/startup.py”, line 456, in run_api_server
app = create_app(run_mode=run_mode)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “/home/xqxls/git/Langchain-Chatchat/server/api.py”, line 51, in create_app
mount_app_routes(app, run_mode=run_mode)
File “/home/xqxls/git/Langchain-Chatchat/server/api.py”, line 77, in mount_app_routes
mount_knowledge_routes(app)
File “/home/xqxls/git/Langchain-Chatchat/server/api.py”, line 142, in mount_knowledge_routes
from server.chat.agent_chat import agent_chat
File “/home/xqxls/git/Langchain-Chatchat/server/chat/agent_chat.py”, line 15, in
from server.agent.custom_agent.ChatGLM3Agent import initialize_glm3_agent
File “/home/xqxls/git/Langchain-Chatchat/server/agent/custom_agent/ChatGLM3Agent.py”, line 9, in
from pydantic.schema import model_schema
ImportError: cannot import name ‘model_schema’ from ‘pydantic.schema’ (/home/xqxls/git/Langchain-Chatchat/venv/lib/python3.11/site-packages/pydantic/schema.py)