Update Genome_database.py

Genome_database.py

@@ -6,9 +6,15 @@ import os
 import gzip
 import re
 
+class GenomeDatasetConfig(datasets.BuilderConfig):
+    def __init__(self, num_urls=None, **kwargs):
+        super(GenomeDatasetConfig, self).__init__(**kwargs)
+        self.num_urls = num_urls
+
 class GenomeDataset(datasets.GeneratorBasedBuilder):
     VERSION = datasets.Version("1.1.0")
-    
+    BUILDER_CONFIG_CLASS = GenomeDatasetConfig
+
     def _info(self):
         return datasets.DatasetInfo(
             features=datasets.Features({
@@ -30,6 +36,10 @@ class GenomeDataset(datasets.GeneratorBasedBuilder):
       urls_filepath = dl_manager.download_and_extract('urlfile.txt')
       with open(urls_filepath) as urls_file:
         downloaded_files = [line.rstrip() for line in urls_file]
+
+      num_urls = self.config.num_urls or len(downloaded_files)
+      downloaded_files = downloaded_files[:num_urls]
+
       train_files = downloaded_files[:int(len(downloaded_files) * 0.8)] # first 80% for training
       test_files = downloaded_files[int(len(downloaded_files) * 0.8):]  # last 20% for testing
 
@@ -44,6 +54,7 @@ class GenomeDataset(datasets.GeneratorBasedBuilder):
           )
       ]
 
+
     def _generate_examples(self, filepaths: List[str]) -> Tuple[str, Dict[str, Any]]:
         split_regex = re.compile('-')
         id_ = 0