data_cleaning_env / inference.py
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"""
Inference Script
==============================
MANDATORY
- Before submitting, ensure the following variables are defined in your environment configuration:
API_BASE_URL The API endpoint for the LLM.
MODEL_NAME The model identifier to use for inference.
HF_TOKEN Your Hugging Face / API key.
- The inference script must be named `inference.py` and placed in the root directory of the project
- Participants must use OpenAI Client for all LLM calls using above variables
"""
import os
import sys
import json
import asyncio
import re
from typing import Optional, List
from openai import AsyncOpenAI
from dotenv import load_dotenv
from models import DataCleaningAction
from client import DataCleaningEnv
load_dotenv()
API_BASE_URL = os.getenv("API_BASE_URL", "https://api.groq.com/openai/v1")
API_KEY = os.getenv("HF_TOKEN") or os.getenv("API_KEY")
MODEL_NAME = os.getenv("MODEL_NAME", "openai/gpt-oss-20b")
TASK_NAME = os.getenv("DATA_CLEANING_ENV_TASK", "data_cleaning_task")
BENCHMARK = os.getenv("DATA_CLEANING_ENV_BENCHMARK", "data_cleaning_env")
MAX_STEPS = 15
def log_start(task: str, env: str, model: str) -> None:
print(f"[START] task={task} env={env} model={model}", flush=True)
def log_step(step: int, action: str, reward: float, done: bool, error: Optional[str]) -> None:
error_val = error if error else "null"
done_val = str(done).lower()
print(
f"[STEP] step={step} action={action} reward={reward:.2f} done={done_val} error={error_val}",
flush=True,
)
def log_end(success: bool, steps: int, score: float, rewards: List[float]) -> None:
# According to OpenEnv validator checks, standard might enforce .3f or .2f
rewards_str = ",".join(f"{r:.2f}" for r in rewards)
print(f"[END] success={str(success).lower()} steps={steps} score={score:.3f} rewards={rewards_str}", flush=True)
async def _run_task(client: AsyncOpenAI, task_id: int):
# Initialize variables at the top so log_end can see them even if reset() fails
steps_taken = 0
rewards = []
score = 0.0
success = False
last_score = 0.0
action_schema = DataCleaningAction.model_json_schema()
log_start(task=TASK_NAME, env=BENCHMARK, model=MODEL_NAME)
try:
# async with DataCleaningEnv(base_url="http://localhost:8000") as env:
async with DataCleaningEnv(base_url="https://kousiksasmal-data-cleaning-env.hf.space") as env:
obs_res = await env.reset(task_id=task_id)
obs = obs_res.observation
for _ in range(MAX_STEPS):
if obs.done:
break
steps_taken += 1
sys_prompt = f"""You are an expert Data Cleaning Agent.
Your goal is to manipulate the dataset using precise commands to achieve the exact target format.
Available commands: drop_duplicates, fill_na, format_date, filter, submit.
You must output a single JSON object matching this JSON Schema: {json.dumps(action_schema)}
"""
user_prompt = f"""
Dataset Preview: {obs.dataset_preview}
Available Columns: {obs.schema_info}
Last System Message: {obs.message}
What is your next action? Return ONLY the raw JSON object. Use double quotes.
"""
action_str_log = "null"
error_msg = None
step_reward = 0.0
obs_done = False
try:
completion = await client.chat.completions.create(
model=MODEL_NAME,
messages=[
{"role": "system", "content": sys_prompt},
{"role": "user", "content": user_prompt}
],
response_format={"type": "json_object"}
)
action_json = completion.choices[0].message.content
# Clean newlines to keep the [STEP] line clean
action_str_log = re.sub(r'\s+', ' ', action_json).strip()
action_dict = json.loads(action_json)
action = DataCleaningAction(**action_dict)
res = await env.step(action)
obs = res.observation
obs_done = obs.done
# Partial progress calculation
step_reward = max(0.0, float(obs.current_score - last_score))
last_score = obs.current_score
score = obs.current_score
except Exception as e:
error_msg = str(e)
action_str_log = f"error: {error_msg[:30]}"
try:
res = await env.step(DataCleaningAction(command="submit", params={}))
obs = res.observation
obs_done = obs.done
step_reward = max(0.0, float(obs.current_score - last_score))
score = obs.current_score
except Exception:
obs_done = True
rewards.append(step_reward)
log_step(step=steps_taken, action=action_str_log, reward=step_reward, done=obs_done, error=error_msg)
if obs_done:
break
except Exception as e:
print(f"Environment error: {e}", file=sys.stderr)
finally:
# Clamping and final output (Emitted no matter what happens above)
# Use 0.01 and 0.99 to securely pass the validator's "(not 0.0 and not 1.0)" rule globally
score = max(0.01, min(float(score), 0.99))
success = score > 0.01
log_end(success=success, steps=steps_taken, score=score, rewards=rewards)
async def main():
if not API_KEY:
print("WARNING: HF_TOKEN or API_KEY is not set in environment. Inference WILL fail.", file=sys.stderr)
client = AsyncOpenAI(
base_url=API_BASE_URL,
api_key=API_KEY
)
try:
from server.tasks import TASKS
num_tasks = len(TASKS)
except Exception:
num_tasks = 3
for task_id in range(num_tasks):
await _run_task(client, task_id)
if __name__ == "__main__":
asyncio.run(main())