langchain/tests/integration_tests/agent/test_pandas_agent.py

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import re
import numpy as np
import pytest
from pandas import DataFrame
from langchain.agents import create_pandas_dataframe_agent
from langchain.agents.agent import AgentExecutor
from langchain.llms import OpenAI
@pytest.fixture(scope="module")
def df() -> DataFrame:
random_data = np.random.rand(4, 4)
df = DataFrame(random_data, columns=["name", "age", "food", "sport"])
return df
def test_pandas_agent_creation(df: DataFrame) -> None:
agent = create_pandas_dataframe_agent(OpenAI(temperature=0), df)
assert isinstance(agent, AgentExecutor)
def test_data_reading(df: DataFrame) -> None:
agent = create_pandas_dataframe_agent(OpenAI(temperature=0), df)
assert isinstance(agent, AgentExecutor)
response = agent.run("how many rows in df? Give me a number.")
result = re.search(rf".*({df.shape[0]}).*", response)
assert result is not None
assert result.group(1) is not None