Add file extensions to shards

requirements.txt

@@ -1,2 +1,3 @@
 cityscapesscripts
-webdataset
+webdataset
+pandas

scripts/build.py

@@ -242,7 +242,7 @@ def run_writer(
         tar_path = tar_path.with_suffix(f".tar.{compression}")
         write_mode = f"w:{compression}"
     else:
-        tar_path.with_suffix(".tar")
+        tar_path = tar_path.with_suffix(".tar")
         write_mode = "w"
 
     with tarfile.open(tar_path, write_mode) as tar:

scripts/prepare.py

@@ -151,6 +151,7 @@ def main():
         if os.path.isfile(zf_path):
             print(f"Already downloaded: {zf_path}")
         else:
+            print(f"Needs to be downloaded: {zf_path}")
             download_list.append(zf)
 
     # Download missing ZIP files using csDownload directly