Update README.md

README.md

@@ -112,19 +112,23 @@ Example:
 These parts correspond to a single original archive. You can merge them into a single folder using Python:
 
 ```python
-import zipfile
 from pathlib import Path
 
 sequence_dir = Path("SynLiDAR/FullDataset/sequences")
-parts = sorted(sequence_dir.glob("06_part*.zip"))
+# find bases that have part files
+bases = sorted({p.stem.split("_part")[0] for p in sequence_dir.glob("*_part*.zip")})
 
-output = Path("merged_06")
-output.mkdir(exist_ok=True)
+for base in bases:
+    parts = sorted(sequence_dir.glob(f"{base}_part*.zip"))
+    output_zip = sequence_dir / f"{base}.zip"
 
-for z in parts:
-    print("Extracting", z.name)
-    with zipfile.ZipFile(z, "r") as zp:
-        zp.extractall(output)
+    print(f"[{base}] merging {len(parts)} parts -> {output_zip}")
+    with open(output_zip, "wb") as out:
+        for p in parts:
+            with open(p, "rb") as f:
+                out.write(f.read())
+
+print("All sequences merged.")
 ```