Don't force download

ecoset.py

@@ -144,11 +144,12 @@ class Ecoset(datasets.GeneratorBasedBuilder):
             if not op.exists(target_dir):
                 os.makedirs(target_dir)
             zip_path = op.join(target_dir, "ecoset.zip")
-            s3 = boto3.client(urlinfo.scheme, config=Config(signature_version=UNSIGNED))
-            s3.download_file(urlinfo.netloc, urlinfo.path[1:], zip_path)
+            if not op.exists(zip_path):
+                s3 = boto3.client(urlinfo.scheme, config=Config(signature_version=UNSIGNED))
+                s3.download_file(urlinfo.netloc, urlinfo.path[1:], zip_path)
             # unzip
             # Expand-Archive -LiteralPath <PathToZipFile> -DestinationPath <PathToDestination>
-            subprocess.call(["unzip", "-P", password.encode("ascii"), "-o", zip_path, "-d", target_dir], shell=False)
+            subprocess.call(["unzip", "-n", "-P", password.encode("ascii"), "-o", zip_path, "-d", target_dir], shell=False)
             
             
         # take slow or very slow download depending on platform