Update small_mc4.py

small_mc4.py

@@ -42,6 +42,17 @@ _N_SHARDS_PER_SPLIT = {
 }
 
 
+import requests
+
+def check_file_exists(url):
+    try:
+        response = requests.head(url)
+        return response.status_code == 200
+    except requests.RequestException:
+        return False
+
+
+
 class Mc4Config(datasets.BuilderConfig):
     """BuilderConfig for mC4."""
 
@@ -96,6 +107,14 @@ class Mc4(datasets.GeneratorBasedBuilder):
                 )
                 for lang in self.config.languages
                 for index in range(_N_SHARDS_PER_SPLIT[lang][split])
+                if check_file_exists(
+                    _DATA_URL.format(
+                    language=lang,
+                    split_suffix="-validation" if split == "validation" else "",
+                    index=index,
+                    n_shards=_N_SHARDS_PER_SPLIT[lang][split],
+                )
+                )
             ]
         train_downloaded_files = dl_manager.download(data_urls["train"])
         validation_downloaded_files = dl_manager.download(data_urls["validation"])