Python_repl syntax error

[l4p1s]

II want to run python code in langchain.　
However, I often get a syntax error and I don't know how to solve it.

Below is the code defined by python_repl and the result of its execution.

llm_math = LLMMathChain.from_llm(ChatOpenAI())

python_repl = PythonREPL()

tools = [
    Tool(
    name="python_repl",
    description="A Python shell. Use this to execute python commands. Input should be a valid python command. If you want to see the output of a value, you should print it out with `print(...)`.",
    func=python_repl.run
    ),
    
]
llm = ChatOpenAI(temperature=0.9,model = "gpt-4")

agent_= initialize_agent(
    tools,
    llm=llm,
    agent="zero-shot-react-description", 
    verbose=True,
    handle_parsing_errors=True
)

python_repl.run("3*4は？")
"SyntaxError('invalid decimal literal', ('<string>', 1, 3, '3*4は？', 1, 3))"

The error has been identified as being due to the fact that blocks of Python code are enclosed in ````.

#14357

What should I do?

I am translating it into English, so please ask me if you don't understand.

[eyurtsev]

python_repl.run("3*4は？")

Uses the python interpreter to run the given string rather than the agent. 3*4は？ is not valid python code, so it should raise a syntax error.

If you're getting this during operation of the agent, it's because the agent isn't able to create a valid python expression. You can wrap the python repl tool with a try except that catches SyntaxErrors and translates them into ToolExceptionErrors to give feedback to the agent that it was using incorrect python syntax.

[l4p1s]

i try it.

`try:

python_repl = PythonREPL()

except Exception as e:
print(f"An error occurred: {e}")

tools = [
Tool(
name="python_repl",
description="A Python shell. Use this to execute python commands. Input should be a valid python command. If you want to see the output of a value, you should print it out with print(...).",
func=python_repl.run
),

]

llm = ChatOpenAI(temperature=0.9,model = "gpt-4")

agent_= initialize_agent(
tools,
llm=llm,
agent="zero-shot-react-description",
verbose=True,
handle_parsing_errors=True
)

python_repl.run("3*4は？")

`

LangChainDeprecationWarning: The function initialize_agent was deprecated in LangChain 0.1.0 and will be removed in 0.2.0. Use Use new agent constructor methods like create_react_agent, create_json_agent, create_structured_chat_agent, etc. instead. warn_deprecated( Python REPL can execute arbitrary code. Use with caution. "SyntaxError('invalid decimal literal', ('<string>', 1, 3, '3*4は？', 1, 3))"

"Sorry for the delay.

What should I do?"