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October 30, 2023 13:21
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OpenAI function calling
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# source: https://platform.openai.com/docs/guides/gpt/function-calling | |
import openai | |
import json | |
# Example dummy function hard coded to return the same weather | |
# In production, this could be your backend API or an external API | |
def get_current_weather(location, unit="fahrenheit"): | |
"""Get the current weather in a given location""" | |
weather_info = { | |
"location": location, | |
"temperature": "72", | |
"unit": unit, | |
"forecast": ["sunny", "windy"], | |
} | |
return json.dumps(weather_info) | |
# Step 1, send model the user query and what functions it has access to | |
def run_conversation(): | |
response = openai.ChatCompletion.create( | |
model="gpt-3.5-turbo-0613", | |
messages=[{"role": "user", "content": "What's the weather like in Boston?"}], | |
functions=[ | |
{ | |
"name": "get_current_weather", | |
"description": "Get the current weather in a given location", | |
"parameters": { | |
"type": "object", | |
"properties": { | |
"location": { | |
"type": "string", | |
"description": "The city and state, e.g. San Francisco, CA", | |
}, | |
"unit": {"type": "string", "enum": ["celsius", "fahrenheit"]}, | |
}, | |
"required": ["location"], | |
}, | |
} | |
], | |
function_call="auto", | |
) | |
message = response["choices"][0]["message"] | |
# Step 2, check if the model wants to call a function | |
if message.get("function_call"): | |
function_name = message["function_call"]["name"] | |
# Step 3, call the function | |
# Note: the JSON response from the model may not be valid JSON | |
function_response = get_current_weather( | |
location=message.get("location"), | |
unit=message.get("unit"), | |
) | |
# Step 4, send model the info on the function call and function response | |
second_response = openai.ChatCompletion.create( | |
model="gpt-3.5-turbo-0613", | |
messages=[ | |
{"role": "user", "content": "What is the weather like in boston?"}, | |
message, | |
{ | |
"role": "function", | |
"name": function_name, | |
"content": function_response, | |
}, | |
], | |
) | |
return second_response | |
print(run_conversation()) |
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