d3021b4590
Example files like openai.py shadow installed packages when Python adds the script directory to sys.path. Prepend the parent folder name to each example file (e.g. openai.py -> function-calling-openai.py). Also split thinking-and-mcp/ into separate mcp/ and thinking/ directories.
251 lines
8.8 KiB
Python
251 lines
8.8 KiB
Python
#
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# Copyright (c) 2024-2026, Daily
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#
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# SPDX-License-Identifier: BSD 2-Clause License
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#
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import asyncio
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import io
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import json
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import os
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import re
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import shutil
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import aiohttp
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from dotenv import load_dotenv
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from loguru import logger
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from mcp import StdioServerParameters
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from PIL import Image
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from pipecat.audio.vad.silero import SileroVADAnalyzer
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from pipecat.frames.frames import (
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Frame,
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FunctionCallResultFrame,
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LLMRunFrame,
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URLImageRawFrame,
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)
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from pipecat.pipeline.pipeline import Pipeline
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from pipecat.pipeline.runner import PipelineRunner
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from pipecat.pipeline.task import PipelineParams, PipelineTask
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from pipecat.processors.aggregators.llm_context import LLMContext
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from pipecat.processors.aggregators.llm_response_universal import (
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LLMContextAggregatorPair,
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LLMUserAggregatorParams,
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)
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from pipecat.processors.frame_processor import FrameDirection, FrameProcessor
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from pipecat.runner.types import RunnerArguments
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from pipecat.runner.utils import create_transport
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from pipecat.services.anthropic.llm import AnthropicLLMService
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from pipecat.services.cartesia.tts import CartesiaTTSService
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from pipecat.services.deepgram.stt import DeepgramSTTService
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from pipecat.services.mcp_service import MCPClient
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from pipecat.transports.base_transport import BaseTransport, TransportParams
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from pipecat.transports.daily.transport import DailyParams
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load_dotenv(override=True)
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class UrlToImageProcessor(FrameProcessor):
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def __init__(self, aiohttp_session: aiohttp.ClientSession, **kwargs):
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super().__init__(**kwargs)
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self._aiohttp_session = aiohttp_session
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async def process_frame(self, frame: Frame, direction: FrameDirection):
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await super().process_frame(frame, direction)
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if isinstance(frame, FunctionCallResultFrame):
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await self.push_frame(frame, direction)
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image_url = self.extract_url(frame.result)
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if image_url:
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await self.run_image_process(image_url)
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# sometimes we get multiple image urls- process 1 at a time
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await asyncio.sleep(1)
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else:
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await self.push_frame(frame, direction)
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def extract_url(self, text: str):
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try:
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data = json.loads(text)
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if "artObject" in data:
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return data["artObject"]["webImage"]["url"]
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if "artworks" in data and len(data["artworks"]):
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return data["artworks"][0]["webImage"]["url"]
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except (json.JSONDecodeError, KeyError, TypeError):
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pass
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return None
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async def run_image_process(self, image_url: str):
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try:
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logger.debug(f"handling image from url: '{image_url}'")
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async with self._aiohttp_session.get(image_url) as response:
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image_stream = io.BytesIO(await response.content.read())
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image = Image.open(image_stream)
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image = image.convert("RGB")
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frame = URLImageRawFrame(
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url=image_url, image=image.tobytes(), size=image.size, format="RGB"
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)
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await self.push_frame(frame)
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except Exception as e:
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error_msg = f"Error handling image url {image_url}: {str(e)}"
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logger.error(error_msg)
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# full list of tools available from rijksmuseum MCP:
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# - get_artwork_details
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# - get_artwork_image
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# - get_user_sets
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# - get_user_set_details
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# - open_image_in_browser
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# - get_artist_timeline
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mcp_tools_filter = ["get_artwork_details", "get_artwork_image", "open_image_in_browser"]
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def open_image_output_filter(output: str):
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pattern = r"Successfully opened image in browser: "
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text_to_print = re.sub(pattern, "", output)
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print(f"🖼️ link to high resolution artwork: {text_to_print}")
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# We use lambdas to defer transport parameter creation until the transport
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# type is selected at runtime.
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transport_params = {
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"daily": lambda: DailyParams(
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audio_in_enabled=True,
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audio_out_enabled=True,
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video_out_enabled=True,
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video_out_width=1024,
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video_out_height=1024,
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),
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"webrtc": lambda: TransportParams(
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audio_in_enabled=True,
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audio_out_enabled=True,
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video_out_enabled=True,
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video_out_width=1024,
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video_out_height=1024,
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),
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}
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async def run_bot(transport: BaseTransport, runner_args: RunnerArguments):
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logger.info(f"Starting bot")
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# Create an HTTP session for API calls
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async with aiohttp.ClientSession() as session:
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stt = DeepgramSTTService(api_key=os.getenv("DEEPGRAM_API_KEY"))
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tts = CartesiaTTSService(
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api_key=os.getenv("CARTESIA_API_KEY"),
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settings=CartesiaTTSService.Settings(
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voice="71a7ad14-091c-4e8e-a314-022ece01c121", # British Reading Lady
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),
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)
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system_prompt = f"""
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You are a helpful LLM in a voice call.
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Your goal is to demonstrate your capabilities in a succinct way.
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You have access to tools to search the Rijksmuseum collection.
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Offer, for example, to show a floral still life, use the `search_artwork` tool.
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The tool may respond with a JSON object with an `artworks` array. Choose the art from that array.
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Once the tool has responded, tell the user the title and use the `open_image_in_browser` tool.
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Your output will be spoken aloud, so avoid special characters that can't easily be spoken, such as emojis or bullet points.
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Respond to what the user said in a creative and helpful way.
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Don't overexplain what you are doing.
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Just respond with short sentences when you are carrying out tool calls.
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"""
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llm = AnthropicLLMService(
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api_key=os.getenv("ANTHROPIC_API_KEY"),
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settings=AnthropicLLMService.Settings(
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system_instruction=system_prompt,
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),
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)
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try:
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mcp = MCPClient(
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server_params=StdioServerParameters(
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command=shutil.which("npx"),
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# https://github.com/r-huijts/rijksmuseum-mcp
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args=["-y", "mcp-server-rijksmuseum"],
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env={"RIJKSMUSEUM_API_KEY": os.getenv("RIJKSMUSEUM_API_KEY")},
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),
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# Optional
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tools_filter=mcp_tools_filter, # Optional
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tools_output_filters={"open_image_in_browser": open_image_output_filter},
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)
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except Exception as e:
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logger.error(f"error setting up mcp")
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logger.exception("error trace:")
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mcp_image = UrlToImageProcessor(aiohttp_session=session)
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tools = {}
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try:
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tools = await mcp.register_tools(llm)
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except Exception as e:
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logger.error(f"error registering tools")
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logger.exception("error trace:")
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context = LLMContext(tools=tools)
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user_aggregator, assistant_aggregator = LLMContextAggregatorPair(
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context,
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user_params=LLMUserAggregatorParams(vad_analyzer=SileroVADAnalyzer()),
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)
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pipeline = Pipeline(
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[
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transport.input(), # Transport user input
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stt,
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user_aggregator, # User spoken responses
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llm, # LLM
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tts, # TTS
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mcp_image, # URL image -> output
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transport.output(), # Transport bot output
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assistant_aggregator, # Assistant spoken responses and tool context
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]
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)
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task = PipelineTask(
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pipeline,
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params=PipelineParams(
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enable_metrics=True,
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enable_usage_metrics=True,
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),
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idle_timeout_secs=runner_args.pipeline_idle_timeout_secs,
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)
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@transport.event_handler("on_client_connected")
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async def on_client_connected(transport, client):
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logger.info(f"Client connected: {client}")
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# Kick off the conversation.
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await task.queue_frames([LLMRunFrame()])
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@transport.event_handler("on_client_disconnected")
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async def on_client_disconnected(transport, client):
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logger.info(f"Client disconnected")
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await task.cancel()
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runner = PipelineRunner(handle_sigint=runner_args.handle_sigint)
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await runner.run(task)
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async def bot(runner_args: RunnerArguments):
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"""Main bot entry point compatible with Pipecat Cloud."""
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transport = await create_transport(runner_args, transport_params)
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await run_bot(transport, runner_args)
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if __name__ == "__main__":
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if not os.getenv("RIJKSMUSEUM_API_KEY"):
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logger.error(
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f"Please set RIJKSMUSEUM_API_KEY environment variable for this example. See https://github.com/r-huijts/rijksmuseum-mcp and https://www.rijksmuseum.nl/en/register?redirectUrl=https://www.https://www.rijksmuseum.nl/en/rijksstudio/my/profile"
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)
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import sys
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sys.exit(1)
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from pipecat.runner.run import main
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main()
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