Migrate to doctest

Author: SvenDS9

torchdata/datapipes/iter/util/converter.py

@@ -36,24 +36,37 @@ class IterToMapConverterMapDataPipe(MapDataPipe):
         will be replaced by the new value.
 
     Example:
-        >>> from torchdata.datapipes.iter import IterableWrapper
-        >>> source_dp = IterableWrapper([(i, i) for i in range(10)])
-        >>> map_dp = source_dp.to_map_datapipe()
-        >>> list(map_dp)
-        [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
-        >>> source_dp2 = IterableWrapper([('a', 1), ('b', 2), ('c', 1)])
-        >>> map_dp2 = source_dp2.to_map_datapipe()
-        >>> map_dp2['a']
-        1
-        >>> def row_to_tuple(row):
-        >>>     label = row[0]
-        >>>     data = row[1:]
-        >>>     return label, data
-        >>> source_dp3 = IterableWrapper([('a', 1, 1, 1, 1, 1, 1), ('b', 2, 2, 2, 2, 2, 2), ('c', 3, 3, 3, 3, 3, 3)])
-        >>> map_dp3 = source_dp3.to_map_datapipe(key_value_fn=row_to_tuple)
-        >>> map_dp3['a']
+
+    .. testsetup::
+
+        from torchdata.datapipes.iter import IterableWrapper
+
+    .. testcode::
+
+        source_dp = IterableWrapper([(i, i) for i in range(10)])
+        map_dp = source_dp.to_map_datapipe()
+        assert list(map_dp) == [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
+
+        source_dp2 = IterableWrapper([('a', 1), ('b', 2), ('c', 1)])
+        map_dp2 = source_dp2.to_map_datapipe()
+        assert map_dp2['a']) == 1
+
+    .. testcode::
+
+        def row_to_tuple(row):
+            label = row[0]
+            data = row[1:]
+            return label, data
+        source_dp3 = IterableWrapper([('a', 1, 1, 1, 1, 1, 1), ('b', 2, 2, 2, 2, 2, 2), ('c', 3, 3, 3, 3, 3, 3)])
+        map_dp3 = source_dp3.to_map_datapipe(key_value_fn=row_to_tuple)
+        print(map_dp3['a'])
+
+    .. testoutput::
+
         (1, 1, 1, 1, 1, 1)
+
     """
+
     datapipe: IterDataPipe
     key_value_fn: Optional[Callable]
     _map: Optional[Dict]