In read_url, when uploading data, now always convert the path to the absolute path. This makes it possible to call it with a relative path, which improves user friendliness of the API.

Author: PGijsbers

openml/apiconnector.py

@@ -858,7 +858,8 @@ def _read_url(self, url, data=None, file_dictionary=None):
         if file_dictionary is not None:
             file_elements = {}
             for key, path in file_dictionary.items():
-                if os.path.isabs(path) and os.path.exists(path):
+                path = os.path.abspath(path)
+                if os.path.exists(path):
                     try:
                         if key is 'dataset':
                             decoder = arff.ArffDecoder()