Qwen 3 Coder Next

python\nimport requests\nimport json\nimport csv\nimport logging\nimport time\n\nlogging.basicConfig(level=logging.INFO)\n\ndef fetch_with_retry(url, max_retries=3):\n for attempt in range(max_retries):\n try:\n response = requests.get(url)\n response.raise_for_status()\n return response.json()\n except requests.exceptions.RequestException as e:\n logging.error(f"Attempt {attempt+1} failed: {e}")\n if attempt < max_retries - 1:\n time.sleep(2 attempt)\n raise Exception("Max retries exceeded")\n\ndata = fetch_with_retry("https://jsonplaceholder.typicode.com/posts")\n\nwith open("posts.csv", "w", newline="") as f:\n writer = csv.DictWriter(f, fieldnames=["id", "title", "body", "userId"])\n writer.writeheader()\n writer.writerows(data)\n\nlogging.info("Data saved to posts.csv")

Diagnosis: The sum() fails if any item.price is None, causing TypeError.\n\nFixed Code:\npython\ndef calculate_total(items):\n return sum(item.price or 0 for item in items if item is not None)\n\n\nTest Added:\npython\nclass Item:\n def __init__(self, price):\n self.price = price\n\nassert calculate_total([Item(10), Item(None), None]) == 10\n\n\nExplanation: Filters None items, treats None prices as 0. Robust for incomplete data. Commit as "Fix calculate_total for None handling + test".