Description
When using ChatAgent with tools and calling agent.run() or agent.run_stream(), the method fails with a TypeError because _prepare_thread_and_messages calls deepcopy(self.default_options) which contains AIFunction objects that hold references to OpenTelemetry Histogram objects containing threading.Lock.
Code Sample
from agent_framework import ChatAgent, ai_function
@ai_function
def my_tool(param: str) -> str:
"""A simple tool."""
return f"Result: {param}"
# Create agent with tools
agent = ChatAgent(
chat_client=some_chat_client,
name="test-agent",
tools=[my_tool], # Any tool causes the issue
)
# This will fail
response = await agent.run("Hello")Error Messages / Stack Traces
Traceback (most recent call last):
File ".../agent_framework/_agents.py", line 806, in run
thread, run_chat_options, thread_messages = await self._prepare_thread_and_messages(
File ".../agent_framework/_agents.py", line 1229, in _prepare_thread_and_messages
chat_options = deepcopy(self.default_options) if self.default_options else {}
File "/usr/lib/python3.11/copy.py", line 172, in deepcopy
y = _reconstruct(x, memo, *rv)
...
File "/usr/lib/python3.11/copy.py", line 271, in _reconstruct
state = deepcopy(state, memo)
File "/usr/lib/python3.11/copy.py", line 146, in deepcopy
y = copier(x, memo)
File "/usr/lib/python3.11/copy.py", line 231, in _deepcopy_dict
y[deepcopy(key, memo)] = deepcopy(value, memo)
...
TypeError: cannot pickle '_thread.RLock' objectPackage Versions
agent-framework v1.0.0b260116
Python Version
No response
Additional Context
No response
Description
When using ChatAgent with tools and calling agent.run() or agent.run_stream(), the method fails with a TypeError because _prepare_thread_and_messages calls deepcopy(self.default_options) which contains AIFunction objects that hold references to OpenTelemetry Histogram objects containing threading.Lock.
Code Sample
from agent_framework import ChatAgent, ai_function @ai_function def my_tool(param: str) -> str: """A simple tool.""" return f"Result: {param}" # Create agent with tools agent = ChatAgent( chat_client=some_chat_client, name="test-agent", tools=[my_tool], # Any tool causes the issue ) # This will fail response = await agent.run("Hello")Error Messages / Stack Traces
Package Versions
agent-framework v1.0.0b260116
Python Version
No response
Additional Context
No response