Tracing Walkthrough

import os
os.environ["LANGCHAIN_HANDLER"] = "langchain"

## Uncomment this if using hosted setup.

# os.environ["LANGCHAIN_ENDPOINT"] = "https://langchain-api-gateway-57eoxz8z.uc.gateway.dev" 

## Uncomment this if you want traces to be recorded to "my_session" instead of default.

# os.environ["LANGCHAIN_SESSION"] = "my_session"  

## Better to set this environment variable in the terminal
## Uncomment this if using hosted version. Replace "my_api_key" with your actual API Key.

# os.environ["LANGCHAIN_API_KEY"] = "my_api_key"  

import langchain
from langchain.agents import Tool, initialize_agent, load_tools
from langchain.agents import AgentType
from langchain.chat_models import ChatOpenAI
from langchain.llms import OpenAI

# Agent run with tracing. Ensure that OPENAI_API_KEY is set appropriately to run this example.

llm = OpenAI(temperature=0)
tools = load_tools(["llm-math"], llm=llm)

agent = initialize_agent(
    tools, llm, agent=AgentType.ZERO_SHOT_REACT_DESCRIPTION, verbose=True
)

agent.run("What is 2 raised to .123243 power?")

> Entering new AgentExecutor chain...
 I need to use a calculator to solve this.
Action: Calculator
Action Input: 2^.123243
Observation: Answer: 1.0891804557407723

Thought: I now know the final answer.
Final Answer: 1.0891804557407723

> Finished chain.

'1.0891804557407723'

# Agent run with tracing using a chat model
agent = initialize_agent(
    tools, ChatOpenAI(temperature=0), agent=AgentType.ZERO_SHOT_REACT_DESCRIPTION, verbose=True
)

agent.run("What is 2 raised to .123243 power?")

> Entering new AgentExecutor chain...
Question: What is 2 raised to .123243 power?
Thought: I need a calculator to solve this problem.
Action:
```
{
  "action": "calculator",
  "action_input": "2^0.123243"
}
```

Observation: calculator is not a valid tool, try another one.
I made a mistake, I need to use the correct tool for this question.
Action:
```
{
  "action": "calculator",
  "action_input": "2^0.123243"
}
```


Observation: calculator is not a valid tool, try another one.
I made a mistake, the tool name is actually "calc" instead of "calculator".
Action:
```
{
  "action": "calc",
  "action_input": "2^0.123243"
}
```


Observation: calc is not a valid tool, try another one.
I made another mistake, the tool name is actually "Calculator" instead of "calc".
Action:
```
{
  "action": "Calculator",
  "action_input": "2^0.123243"
}
```


Observation: Answer: 1.0891804557407723

Thought:The final answer is 1.0891804557407723.
Final Answer: 1.0891804557407723

> Finished chain.

'1.0891804557407723'