fix

MAMe.py

@@ -18,9 +18,6 @@ import datasets
 import csv
 import os
 
-import zipfile
-import io
-
 _CITATION = """@inproceedings{10.1007/978-3-642-33783-3_36,
 author = {Palermo, Frank and Hays, James and Efros, Alexei A.},
 title = {Dating Historical Color Images},
@@ -54,20 +51,21 @@ _URLS = {
 }
 
 
-def generate_mapping_dict(f):
-    mapping_dict = {}
-    dictreater = csv.DictReader(io.TextIOWrapper(f))
-    for row in dictreater:
-        split = row["Subset"]
-        image_file = row["Image file"]
-        del row["Image file"]
-        del row["Subset"]
-        # add row to subset dictionary
-        row_dict = {image_file: row}
-        if split not in mapping_dict:
-            mapping_dict[split] = row_dict
-        else:
-            mapping_dict[split].update(row_dict)
+def generate_mapping_dict(csv_file):
+    with open(csv_file) as f:
+        mapping_dict = {}
+        dictreater = csv.DictReader(f)
+        for row in dictreater:
+            split = row["Subset"]
+            image_file = row["Image file"]
+            del row["Image file"]
+            del row["Subset"]
+            # add row to subset dictionary
+            row_dict = {image_file: row}
+            if split not in mapping_dict:
+                mapping_dict[split] = row_dict
+            else:
+                mapping_dict[split].update(row_dict)
     return mapping_dict
 
 
@@ -146,7 +144,8 @@ class MAMe(datasets.GeneratorBasedBuilder):
         )
 
     def _split_generators(self, dl_manager):
-        metadata = dl_manager.download(_URLS["metadata"])
+        metadata = dl_manager.download_and_extract(_URLS["metadata"])
+        metadata = os.path.join(metadata, "MAMe_dataset.csv")
         images = dl_manager.download_and_extract(self.config.image_data_url)
         return [
             datasets.SplitGenerator(
@@ -176,15 +175,10 @@ class MAMe(datasets.GeneratorBasedBuilder):
         ]
 
     def _generate_examples(self, metadata, images, split):
-        if self.config.name == "full":
-            from PIL import Image  # to prevent decompression bomb warnings
+        if self.config.name == 'full':
+            from PIL import Image # to prevent decompression bomb warnings
             Image.MAX_IMAGE_PIXELS = None
-        # load csv file from metadata zip directory
-        with zipfile.ZipFile(
-            f"{metadata}/MAMe_metadata.zip"
-        ) as z:
-            with io.BytesIO(z.read("MAMe_dataset.csv")) as f:
-                mapping = generate_mapping_dict(f)
+        mapping = generate_mapping_dict(metadata)
         subset = mapping[split]
         for i, kv in enumerate(subset.items()):
             k, v = kv