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from typing import Dict, List, Optional, Union
import json5
from qwen_agent.tools.base import BaseToolWithFileAccess, register_tool
from qwen_agent.utils.utils import extract_code
from sandbox_fusion import run_code, RunCodeRequest, RunStatus
from requests.exceptions import Timeout
import os
import random
import time
from concurrent.futures import ThreadPoolExecutor, as_completed
SANDBOX_URL = os.getenv('SANDBOX_URL', '')
SANDBOX_FUSION_ENDPOINTS = [SANDBOX_URL]
# Fallback to single endpoint if environment variable exists
if 'SANDBOX_FUSION_ENDPOINT' in os.environ:
SANDBOX_FUSION_ENDPOINTS = os.environ['SANDBOX_FUSION_ENDPOINT'].split(',')
def has_chinese_chars(data) -> bool:
CHINESE_CHAR_RE = re.compile(r'[\u4e00-\u9fff]')
text = f'{data}'
return bool(CHINESE_CHAR_RE.search(text))
@register_tool('PythonInterpreter', allow_overwrite=True)
class PythonInterpreter(BaseToolWithFileAccess):
name = "PythonInterpreter"
description = 'Execute Python code in a sandboxed environment. Use this to run Python code and get the execution results.\n**Make sure to use print() for any output you want to see in the results.**\nFor code parameters, use placeholders first, and then put the code within <code></code> XML tags, such as:\n<tool_call>\n{"purpose": <detailed-purpose-of-this-tool-call>, "name": <tool-name>, "arguments": {"code": ""}}\n<code>\nHere is the code.\n</code>\n</tool_call>\n'
parameters = {
"type": "object",
"properties": {
"code": {
"type": "string",
"description": "The Python code to execute. Must be provided within <code></code> XML tags. Remember to use print() statements for any output you want to see.",
}
},
"required": ["code"],
}
def __init__(self, cfg: Optional[Dict] = None):
super().__init__(cfg)
@property
def args_format(self) -> str:
fmt = self.cfg.get('args_format')
if fmt is None:
if has_chinese_chars([self.name_for_human, self.name, self.description, self.parameters]):
fmt = 'The input for this tool should be a Markdown code block.'
else:
fmt = 'Enclose the code within triple backticks (`) at the beginning and end of the code.'
return fmt
def observation(self, tool: dict, tool_dict: dict, tool_results, empty_mode: bool = False, readpage: bool = False, max_observation_length: int = None, tokenizer=None):
print('test')
assert isinstance(tool_results, str), f"result of python code should be str, instead of {type(tool_results)}. {tool_results}"
return tool_results
@property
def function(self) -> dict:
return {
'name': self.name,
'description': self.description,
'parameters': self.parameters,
}
def call(self, params, files=None, timeout=50, **kwargs) -> str:
try:
try:
code = params.split('<code>')[1].split('</code')[0]
except Exception:
return '[Python Interpreter Error]: format error.'
if not code.strip():
return '[Python Interpreter Error]: Empty code.'
last_error = None
for attempt in range(8):
try:
# Randomly sample an endpoint for each attempt
endpoint = random.choice(SANDBOX_FUSION_ENDPOINTS)
print(f"Attempt {attempt + 1}/5 using endpoint: {endpoint}")
code_result = run_code(RunCodeRequest(code=code, language='python', run_timeout=timeout), max_attempts=1, client_timeout=timeout, endpoint=endpoint)
print("[Python] Code Result", code_result)
result = []
if code_result.run_result.stdout:
result.append(f"stdout:\n{code_result.run_result.stdout}")
if code_result.run_result.stderr:
result.append(f"stderr:\n{code_result.run_result.stderr}")
if code_result.run_result.execution_time >= timeout - 1:
result.append(f"[PythonInterpreter Error] TimeoutError: Execution timed out.")
result = '\n'.join(result)
print('SUCCESS RUNNING TOOL')
return result if result.strip() else 'Finished execution.'
except Timeout as e:
last_error = f'[Python Interpreter Error] TimeoutError: Execution timed out on endpoint {endpoint}.'
print(f"Timeout on attempt {attempt + 1}: {last_error}")
if attempt == 4: # Last attempt
return last_error
continue
except Exception as e:
last_error = f'[Python Interpreter Error]: {str(e)} on endpoint {endpoint}'
print(f"Error on attempt {attempt + 1}: {last_error}")
if attempt == 4: # Last attempt
return last_error
continue
return last_error if last_error else '[Python Interpreter Error]: All attempts failed.'
except Exception as e:
return f"[Python Interpreter Error]: {str(e)}"
def call_specific_endpoint(self, params: Union[str, dict], endpoint: str, timeout: Optional[int] = 30, **kwargs) -> tuple:
"""Test a specific endpoint directly"""
try:
if type(params) is str:
params = json5.loads(params)
code = params.get('code', '')
if not code:
code = params.get('raw', '')
triple_match = re.search(r'```[^\n]*\n(.+?)```', code, re.DOTALL)
if triple_match:
code = triple_match.group(1)
except Exception:
code = extract_code(params)
if not code.strip():
return False, '[Python Interpreter Error]: Empty code.'
try:
start_time = time.time()
code_result = run_code(RunCodeRequest(code=code, language='python', run_timeout=timeout),
max_attempts=1, client_timeout=timeout, endpoint=endpoint)
end_time = time.time()
result = []
if code_result.run_result.stdout:
result.append(f"stdout:\n{code_result.run_result.stdout}")
if code_result.run_result.stderr:
result.append(f"stderr:\n{code_result.run_result.stderr}")
result = '\n'.join(result)
execution_time = end_time - start_time
return True, result if result.strip() else 'Finished execution.', execution_time
except Timeout as e:
return False, f'[Python Interpreter Error] TimeoutError: Execution timed out.', None
except Exception as e:
return False, f'[Python Interpreter Error]: {str(e)}', None
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