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import gradio as gr
import os
from datetime import date
from langchain.agents import AgentType, initialize_agent, load_tools, tool
from langchain.chat_models import ChatOpenAI
from openai import OpenAI
from dotenv import load_dotenv, find_dotenv
_ = load_dotenv(find_dotenv())
OPENWEATHERMAP_API_KEY = os.environ["OPENWEATHERMAP_API_KEY"]
config = {
"model_name": "gpt-4-0613",
"temperature": 0,
}
AGENT_OFF = False
AGENT_ON = True
@tool
def time(text: str) -> str:
"""Returns today's date. Use this for any questions related to knowing today's date.
The input should always be an empty string, and this function will always return today's date.
Any date mathematics should occur outside this function."""
return str(date.today())
def invoke(openai_api_key, prompt, agent_option):
if (openai_api_key == ""):
raise gr.Error("OpenAI API Key is required.")
if (prompt == ""):
raise gr.Error("Prompt is required.")
if (agent_option is None):
raise gr.Error("Use Agent is required.")
output = ""
try:
if (agent_option == AGENT_OFF):
client = OpenAI(api_key = openai_api_key)
completion = client.chat.completions.create(
messages = [{"role": "user", "content": prompt}],
model = config["model_name"],
temperature = config["temperature"],)
output = completion.choices[0].message.content
else:
llm = ChatOpenAI(
model_name = config["model_name"],
openai_api_key = openai_api_key,
temperature = config["temperature"])
tools = load_tools(["openweathermap-api"])
agent = initialize_agent(
tools + # built-in tools
[time], # custom tools
llm,
agent = AgentType.CHAT_ZERO_SHOT_REACT_DESCRIPTION,
handle_parsing_errors = True,
verbose = True)
completion = agent(prompt)
output = completion["output"]
except Exception as e:
err_msg = e
raise gr.Error(e)
return output
gr.close_all()
demo = gr.Interface(fn = invoke,
inputs = [gr.Textbox(label = "OpenAI API Key", type = "password", lines = 1, value = "sk-"),
gr.Textbox(label = "Prompt", lines = 1, value = "What is today's date?"),
gr.Radio([AGENT_OFF, AGENT_ON], label = "Use Agent", value = AGENT_OFF)],
outputs = [gr.Textbox(label = "Completion", lines = 1)],
title = "Generative AI - LLM & Agent",
description = os.environ["DESCRIPTION"],
examples = [["sk-", "What is today's date?", AGENT_ON],
["sk-", "What is the weather in Irvine, California? Answer in imperial system.", AGENT_ON]],
cache_examples = False)
demo.launch() |