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Jasmeet Bhatia
118 lines
4.8 KiB
Python
118 lines
4.8 KiB
Python
# Copyright 2025 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import asyncio
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from google.adk.agents import LlmAgent
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from google.adk.runners import Runner
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from google.adk.sessions import InMemorySessionService
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from google.adk.code_executors import BuiltInCodeExecutor
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from google.genai import types
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AGENT_NAME = "calculator_agent"
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APP_NAME = "calculator"
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USER_ID = "user1234"
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SESSION_ID = "session_code_exec_async"
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GEMINI_MODEL = "gemini-2.0-flash"
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# Agent Definition
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code_agent = LlmAgent(
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name=AGENT_NAME,
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model=GEMINI_MODEL,
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code_executor=BuiltInCodeExecutor(),
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instruction="""You are a calculator agent.
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When given a mathematical expression, write and execute Python code to calculate the result.
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Return only the final numerical result as plain text, without markdown or code blocks.
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""",
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description="Executes Python code to perform calculations.",
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)
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# Session and Runner
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session_service = InMemorySessionService()
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session = asyncio.run(session_service.create_session(
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app_name=APP_NAME, user_id=USER_ID, session_id=SESSION_ID
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))
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runner = Runner(agent=code_agent, app_name=APP_NAME,
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session_service=session_service)
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# Agent Interaction (Async)
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async def call_agent_async(query):
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content = types.Content(role="user", parts=[types.Part(text=query)])
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print(f"\n--- Running Query: {query} ---")
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final_response_text = "No final text response captured."
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try:
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# Use run_async
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async for event in runner.run_async(
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user_id=USER_ID, session_id=SESSION_ID, new_message=content
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):
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print(f"Event ID: {event.id}, Author: {event.author}")
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# --- Check for specific parts FIRST ---
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has_specific_part = False
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if event.content and event.content.parts:
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for part in event.content.parts: # Iterate through all parts
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if part.executable_code:
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# Access the actual code string via .code
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print(
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f" Debug: Agent generated code:\n```python\n{part.executable_code.code}\n```"
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)
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has_specific_part = True
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elif part.code_execution_result:
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# Access outcome and output correctly
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print(
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f" Debug: Code Execution Result: {part.code_execution_result.outcome} - Output:\n{part.code_execution_result.output}"
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)
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has_specific_part = True
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# Also print any text parts found in any event for debugging
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elif part.text and not part.text.isspace():
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print(f" Text: '{part.text.strip()}'")
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# Do not set has_specific_part=True here, as we want the final response logic below
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# --- Check for final response AFTER specific parts ---
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# Only consider it final if it doesn't have the specific code parts we just handled
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if not has_specific_part and event.is_final_response():
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if (
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event.content
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and event.content.parts
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and event.content.parts[0].text
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):
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final_response_text = event.content.parts[0].text.strip()
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print(f"==> Final Agent Response: {final_response_text}")
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else:
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print(
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"==> Final Agent Response: [No text content in final event]")
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except Exception as e:
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print(f"ERROR during agent run: {e}")
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print("-" * 30)
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# Main async function to run the examples
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async def main():
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await call_agent_async("Calculate the value of (5 + 7) * 3")
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await call_agent_async("What is 10 factorial?")
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# Execute the main async function
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try:
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asyncio.run(main())
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except RuntimeError as e:
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# Handle specific error when running asyncio.run in an already running loop (like Jupyter/Colab)
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if "cannot be called from a running event loop" in str(e):
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print("\nRunning in an existing event loop (like Colab/Jupyter).")
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print("Please run `await main()` in a notebook cell instead.")
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# If in an interactive environment like a notebook, you might need to run:
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# await main()
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else:
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raise e # Re-raise other runtime errors
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