Datasets:
| #!/usr/bin/env python3 | |
| """Remove duplicate non-empty lines from a corpus, keeping first occurrence.""" | |
| from __future__ import annotations | |
| import argparse | |
| from pathlib import Path | |
| def main() -> None: | |
| parser = argparse.ArgumentParser() | |
| parser.add_argument("--input", type=Path, required=True) | |
| parser.add_argument("--output", type=Path, required=True) | |
| args = parser.parse_args() | |
| lines = args.input.read_text(encoding="utf-8").splitlines() | |
| seen: set[str] = set() | |
| kept: list[str] = [] | |
| removed = 0 | |
| for line in lines: | |
| key = line.strip() | |
| if key and key in seen: | |
| removed += 1 | |
| continue | |
| if key: | |
| seen.add(key) | |
| kept.append(line) | |
| args.output.parent.mkdir(parents=True, exist_ok=True) | |
| args.output.write_text("\n".join(kept) + "\n", encoding="utf-8") | |
| print(f"{args.input} -> {args.output}: removed={removed} kept={len(kept)}") | |
| if __name__ == "__main__": | |
| main() | |