fix_jsonl.py

import json

input_file = "train.jsonl"
output_file = "clean_train.jsonl"

valid_count = 0
invalid_count = 0

with open(input_file, "r", encoding="utf-8") as infile, open(output_file, "w", encoding="utf-8") as outfile:

    for line_number, line in enumerate(infile, start=1):

        line = line.strip()

        if not line:
            continue

        try:
            obj = json.loads(line)

            # Ensure object is dictionary
            if isinstance(obj, dict):

                outfile.write(json.dumps(obj) + "\n")

                valid_count += 1

            else:
                invalid_count += 1

        except Exception as e:

            invalid_count += 1

            print(f"Invalid line {line_number}: {e}")

print(f"Valid rows: {valid_count}")
print(f"Invalid rows removed: {invalid_count}")