Use zipfile python library instead of unzip command in arkitscene (#1936)

* Use zipfile python library instead of `unzip` command in arkitscene
Windows doesn't have unzip!

* Nit: import sort order

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Co-authored-by: Nikolaus West <[email protected]>

Author: Wumpf

examples/python/arkitscenes/download_dataset.py

@@ -3,6 +3,7 @@
 import math
 import os
 import subprocess
+import zipfile
 from pathlib import Path
 from typing import Final, List, Optional
 
@@ -121,9 +122,9 @@ def download_file(url: str, file_name: str, dst: Path) -> bool:
 def unzip_file(file_name: str, dst: Path, keep_zip: bool = True) -> bool:
     filepath = os.path.join(dst, file_name)
     print(f"Unzipping zip file {filepath}")
-    command = f"unzip -oq {filepath} -d {dst}"
     try:
-        subprocess.check_call(command, shell=True)
+        with zipfile.ZipFile(filepath, "r") as zip_ref:
+            zip_ref.extractall(dst)
     except Exception as error:
         print(f"Error unzipping {filepath}, error: {error}")
         return False