Review this generated reader against the task and identify four distinct risks.
Lazily read positive order totals from an untrusted filename under data_root, skip an optional header, and release the file on errors or early termination.
Python
from pathlib import Path
def iter_orders(data_root, filename):
path = Path(data_root) / filename
source = path.open(encoding="utf-8")
rows = (line.rstrip().split(",") for line in source)
next(rows)
cache = []
for fields in rows:
order_id, total_text = fields
total_cents = int(total_text)
if total_cents:
cache.append((order_id, total_cents))
source.close()
for order in cache:
yield order
generated code is illustrative, not from any one model