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import gradio as gr
from langchain.llms import OpenAI
from langchain.chat_models import ChatOpenAI
from langchain.agents.agent_types import AgentType
from langchain_experimental.agents.agent_toolkits import create_csv_agent
import pandas as pd
import matplotlib.pyplot as plt
from io import BytesIO
from PIL import Image
import numpy as np
# Define a function to create the CSV agent
def create_csv_agent_instance(llm, file_path):
# Set up the agent
agent = create_csv_agent(
llm,
file_path,
verbose=True,
agent_type=AgentType.OPENAI_FUNCTIONS,
)
return agent
# Define the function to perform QA and optionally plot graphs
def qa_app(csv_file, question):
try:
df = pd.read_csv(csv_file.name)
llm = ChatOpenAI(temperature=0, model="gpt-3.5-turbo-16k", openai_api_key=key) # ensure key is properly managed
agent = create_csv_agent_instance(llm, csv_file.name)
response = agent.run(question)
# Check if the user's question implies a request for a plot
if "plot" in question.lower() or "graph" in question.lower():
graph_output = plot_data(df)
else:
graph_output = None
return response, graph_output
except Exception as e:
return f"Error in processing: {str(e)}", None
def plot_data(df):
plt.figure(figsize=(10, 5))
if np.issubdtype(df[df.columns[0]].dtype, np.number) and np.issubdtype(df[df.columns[1]].dtype, np.number):
plt.scatter(df[df.columns[0]], df[df.columns[1]]) # Use scatter for numeric vs numeric
else:
df[df.columns[0]].value_counts().plot(kind='bar') # Example for categorical data
plt.title('Data Distribution')
plt.xlabel(df.columns[0])
plt.ylabel(df.columns[1])
plt.grid(True)
buf = BytesIO()
plt.savefig(buf, format='png')
plt.close()
buf.seek(0)
return Image.open(buf)
# Set up the Gradio interface
demo = gr.Interface(
fn=qa_app,
inputs=[
gr.File(label="Upload CSV file"),
gr.Textbox(label="Question")
],
outputs=[
gr.Textbox(label="Answer"),
gr.Image(label="Generated Plot", type="pil", optional=True), # Mark the plot as optional
],
title="Data Analysis Chatbot",
description="Upload a CSV file, ask a question about the data. Include 'plot' or 'graph' in your question to generate graphs."
)
# Launch the Gradio app with debugging enabled to trace any runtime issues
demo.launch(debug=True)
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