Fix dataset version spec (#862)

Fix #860

Author: stevemessick

src/kaggle/api/kaggle_api_extended.py

@@ -1994,7 +1994,7 @@ def dataset_list_files(self, dataset, page_token=None, page_size=20):
             request = ApiListDatasetFilesRequest()
             request.owner_slug = owner_slug
             request.dataset_slug = dataset_slug
-            request.dataset_version_number = dataset_version_number
+            request.dataset_version_number = int(dataset_version_number) if dataset_version_number else None
             request.page_token = page_token
             request.page_size = page_size
             response = kaggle.datasets.dataset_api_client.list_dataset_files(request)
@@ -2096,7 +2096,7 @@ def dataset_download_file(self, dataset, file_name, path=None, force=False, quie
             request = ApiDownloadDatasetRequest()
             request.owner_slug = owner_slug
             request.dataset_slug = dataset_slug
-            request.dataset_version_number = dataset_version_number
+            request.dataset_version_number = int(dataset_version_number) if dataset_version_number else None
             request.file_name = file_name
             response = kaggle.datasets.dataset_api_client.download_dataset(request)
         url = response.request.url
@@ -2133,7 +2133,7 @@ def dataset_download_files(self, dataset, path=None, force=False, quiet=True, un
             request = ApiDownloadDatasetRequest()
             request.owner_slug = owner_slug
             request.dataset_slug = dataset_slug
-            request.dataset_version_number = dataset_version_number
+            request.dataset_version_number = int(dataset_version_number) if dataset_version_number else None
             response = kaggle.datasets.dataset_api_client.download_dataset(request)
 
         outfile = os.path.join(effective_path, dataset_slug + ".zip")

tests/unit_tests.py

@@ -490,7 +490,7 @@ def test_dataset_g_download_files(self):
             self.test_dataset_a_list()
         ds = ["a", "b"]
         try:
-            api.dataset_download_files(self.dataset)
+            api.dataset_download_files(self.dataset + "/1")
             ds = self.dataset.split("/")
             self.assertTrue(os.path.exists(f"{ds[1]}.zip"))
         except ApiException as e: