replace itertools with yield from

Author: dgarros

dsync/diff.py

@@ -13,7 +13,6 @@
 limitations under the License.
 """
 
-import itertools
 from functools import total_ordering
 from typing import Iterator, Iterable, Optional
 
@@ -76,17 +75,14 @@ def get_children(self) -> Iterator["DiffElement"]:
         """
         order_default = "order_children_default"
 
-        children: Iterator["DiffElement"] = itertools.chain()
         for group in self.groups():
             order_method_name = f"order_children_{group}"
             if hasattr(self, order_method_name):
                 order_method = getattr(self, order_method_name)
             else:
                 order_method = getattr(self, order_default)
 
-            children = itertools.chain(children, order_method(self.children[group]))
-
-        return children
+            yield from order_method(self.children[group])
 
     @classmethod
     def order_children_default(cls, children: dict) -> Iterator["DiffElement"]:

examples/example1/main.py

@@ -9,7 +9,7 @@
 
 
 class MyDiff(Diff):
-    """Custom Diff class to control the order of the site objects"""
+    """Custom Diff class to control the order of the site objects."""
 
     @classmethod
     def order_children_site(cls, children):