FIX: python 3 compability

Author: mfeurer

openml/apiconnector.py

@@ -947,7 +947,6 @@ def _create_run_from_xml(self, xml):
             url = file_[u"oml:url"]
             files[name] = url
 
-        print dic.keys()
         evaluations = dict()
         for evaluation in dic[u"oml:output_data"][u"oml:evaluation"]:
             name = evaluation[u"oml:name"]
@@ -1009,8 +1008,8 @@ def _read_url(self, url, data=None, file_path=None):
 
                 try:
                     response = requests.post(url, data=data, files=fileElement)
-                except URLError, error:
-                    print error
+                except URLError as error:
+                    print(error)
 
                 return response.status_code, response
             else:

openml/entities/dataset.py

@@ -81,7 +81,7 @@ def __init__(self, id, name, version, description, format, creator,
             else:
                 raise Exception()
 
-            with open(self.data_pickle_file, "w") as fh:
+            with open(self.data_pickle_file, "wb") as fh:
                 pickle.dump((X, categorical, attribute_names), fh, -1)
             logger.debug("Saved dataset %d: %s to file %s" %
                          (self.id, self.name, self.data_pickle_file))

tests/test_apiconnector.py

@@ -71,7 +71,7 @@ def test_get_cached_datasets(self):
         datasets = connector.get_cached_datasets()
         self.assertIsInstance(datasets, dict)
         self.assertEqual(len(datasets), 2)
-        self.assertIsInstance(datasets.values()[0], OpenMLDataset)
+        self.assertIsInstance(list(datasets.values())[0], OpenMLDataset)
 
     def test_get_cached_dataset(self):
         workdir = os.path.dirname(os.path.abspath(__file__))