Merge pull request #164 from openml/fix163

fixed get tasks by type.

Author: mfeurer

examples/OpenMLDemo.ipynb

@@ -569,7 +569,7 @@
    "source": [
     "task_list = openml.tasks.list_tasks()\n",
     "\n",
-    "tasks = pd.DataFrame(task_list)\n",
+    "tasks = pd.DataFrame(task_list).transpose()\n",
     "print(\"First 5 of %s tasks:\" % len(tasks))\n",
     "print(tasks[:5][['tid','did','name','task_type','estimation_procedure']])"
    ]
@@ -695,7 +695,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.5.1"
+   "version": "3.4.3"
   }
  },
  "nbformat": 4,

openml/tasks/functions.py

@@ -115,7 +115,7 @@ def list_tasks(task_type_id=None, offset=None, size=None, tag=None):
     """
     api_call = "task/list"
     if task_type_id is not None:
-        api_call += "/task_type_id/%d" % int(task_type_id)
+        api_call += "/type/%d" % int(task_type_id)
 
     if offset is not None:
         api_call += "/offset/%d" % int(offset)

tests/tasks/test_task_functions.py

@@ -51,9 +51,12 @@ def _check_task(self, task):
                       ['in_preparation', 'active', 'deactivated'])
 
     def test_list_tasks_by_type(self):
-        tasks = openml.tasks.list_tasks(task_type_id=3)
+        ttid=3
+        tasks = openml.tasks.list_tasks(task_type_id=ttid)
         self.assertGreaterEqual(len(tasks), 300)
         for tid in tasks:
+            print(tasks[tid])
+            self.assertEquals(ttid, tasks[tid]["ttid"])
             self._check_task(tasks[tid])
 
     def test_list_tasks_by_tag(self):
@@ -86,6 +89,7 @@ def test_list_tasks_per_type_paginate(self):
                 tasks = openml.tasks.list_tasks(task_type_id=j, offset=i, size=size)
                 self.assertGreaterEqual(size, len(tasks))
                 for tid in tasks:
+                    self.assertEquals(j, tasks[tid]["ttid"])
                     self._check_task(tasks[tid])
 
     def test__get_task(self):