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base_agent.py
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base_agent.py
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import json
import openai
import tenacity
from utils import OPENAI_API_KEY, tenacity_retry_log
openai.api_key = OPENAI_API_KEY
GREEN_COLOR = '\u001b[1;32m'
MAG_COLOR = '\u001b[1;35m'
CYAN_COLOR = '\u001b[1;36m'
RESET_COLOR = '\u001b[0m'
class BaseAgent:
def __init__(self, model_name, callbacks=[], **kwargs):
self.model_name = model_name
self.callbacks = callbacks
for k, v in kwargs.items():
setattr(self, k, v)
self.turn_idx = 0
self.system_prompt = self.make_system_prompt()
self.messages = [{'role': 'system', 'content': self.system_prompt}]
self.functions = self.make_function_schemas()
self.function_map = self.make_function_map()
def make_system_prompt(self):
pass
def make_function_schemas(self):
pass
def make_function_map(self):
pass
@tenacity.retry(wait=tenacity.wait_exponential(min=2, max=60),
stop=tenacity.stop_after_attempt(8),
reraise=True,
before_sleep=tenacity_retry_log,
retry=tenacity.retry_if_exception_type(openai.OpenAIError))
def chat(self, messages, extra_openai_args={}):
completion = openai.ChatCompletion.create(
model=self.model_name,
temperature=0,
messages=messages,
functions=self.functions,
request_timeout=10,
**extra_openai_args,
)
for callback in self.callbacks:
callback.on_llm_end(completion)
return completion['choices'][0]['message']
def __call__(self, user_utter):
self.turn_idx += 1
self.messages.append({'role': 'user', 'content': user_utter})
last_function_call = None
extra_openai_args = {}
while True:
msg = self.chat(self.messages, extra_openai_args)
# BUG: no assistant message
# Assistant Response
if msg['content'] is not None:
agent_utter = msg['content']
for callback in self.callbacks:
agent_utter = callback.on_turn_end(agent_utter, self.turn_idx)
return agent_utter.strip()
# Avoid repeat function calling
if msg.get('function_call') == last_function_call:
print('Repeat function calling. Force AI Assistant to repsonse.')
extra_openai_args = {'function_call': 'none'}
continue
last_function_call = msg.get('function_call')
# Function calling Error
function_call = msg.get('function_call')
function_call = self.fix_function_call(function_call)
passed, check_msg = self.check_function_call(function_call)
if not passed:
print()
print('Function parsing error:')
print(f'function_call: {msg.get("function_call")}')
result = check_msg
if msg.get('function_call') and msg['function_call'].get('name'):
name = msg['function_call']['name']
else:
name = None
print('Result: ' + CYAN_COLOR + f'{result}' + RESET_COLOR)
self.messages.append({'role': 'function', 'name': name, 'content': result})
continue
# Function calling Right
function_call = msg['function_call']
name, args = function_call['name'], function_call['arguments']
func = self.function_map[name]
args = json.loads(args)
result = func(**args)
print()
print('Function: ' + MAG_COLOR + f'{name}' + RESET_COLOR)
print('Arguments: ' + GREEN_COLOR + f'{args}' + RESET_COLOR)
for callback in self.callbacks:
callback.on_function_call_end(name, args, result)
print('Result: ' + CYAN_COLOR + f'{result}' + RESET_COLOR)
self.messages.append({'role': 'function', 'name': name, 'content': result})
def __call__deprecated(self, user_utter):
self.turn_idx += 1
self.messages.append({'role': 'user', 'content': user_utter})
while True:
msg = self.chat(self.messages)
# Assistant Response
if msg['content'] is not None:
agent_utter = msg['content']
for callback in self.callbacks:
agent_utter = callback.on_turn_end(agent_utter, self.turn_idx)
return agent_utter.strip()
# Function calling
function_call = msg.get('function_call')
function_call = self.fix_function_call(function_call)
passed, check_msg = self.check_function_call(function_call)
if passed:
function_call = msg['function_call']
name, args = function_call['name'], function_call['arguments']
func = self.function_map[name]
args = json.loads(args)
result = func(**args)
print()
print('Function: ' + MAG_COLOR + f'{name}' + RESET_COLOR)
print('Arguments: ' + GREEN_COLOR + f'{args}' + RESET_COLOR)
for callback in self.callbacks:
callback.on_function_call_end(name, args, result)
else:
print()
print('Function parsing error:')
print(f'function_call: {msg.get("function_call")}')
print(check_msg)
result = check_msg
if msg.get('function_call') and msg['function_call'].get('name'):
name = msg['function_call']['name']
else:
name = None
print('Result: ' + CYAN_COLOR + f'{result}' + RESET_COLOR)
self.messages.append({'role': 'function', 'name': name, 'content': result})
def fix_function_call(self, function_call):
return function_call
def check_function_call(self, function_call):
if function_call is None:
return False, 'No "function_call" provided.'
if 'name' not in function_call:
return False, 'No function name provided.'
if 'arguments' not in function_call:
return False, 'No function arguments provided.'
name, args = function_call['name'], function_call['arguments']
if name not in self.function_map:
return False, f'Function {name} does not exist and cannot be called.'
try:
args = json.loads(args)
except json.JSONDecodeError as e:
return False, f'Invalid json parameters with the exception {e.__class__.__name__}: {e}.'
func_schema_dict = {func['name']: func for func in self.functions}
func_schema = func_schema_dict[name]
if error_args := [arg for arg in args if arg not in func_schema['parameters']['properties']]:
error_args_str = ', '.join(f'"{x}"' for x in error_args)
right_args_str = ', '.join(f'"{x}"' for x in func_schema['parameters']['properties'])
return False, f'Parameters {error_args_str} are not valid. Please provide the valid parameters {right_args_str}.'
elif missing_args := [arg for arg in func_schema['parameters']['required'] if arg not in args]:
args_str = ', '.join(f'"{x}"' for x in missing_args)
return False, f'The required parameters {args_str} are missing.'
return True, 'succeed'