Intermediate changes

commit_hash:63f0ba341b35ad9ea632bfc2971f028cebbec800

Author: robot-piglet

library/python/testing/yatest_lib/external.py

@@ -15,37 +15,39 @@
 MDS_URI_PREFIX = 'https://storage.yandex-team.ru/get-devtools/'
 
 
+def _do_apply(func, value, apply_to_keys, value_path):
+    if value_path is None:
+        value_path = []
+
+    if isinstance(value, list) or isinstance(value, tuple):
+        res = []
+        for ind, item in enumerate(value):
+            path = copy.copy(value_path)
+            path.append(ind)
+            res.append(_do_apply(func, item, apply_to_keys, path))
+    elif isinstance(value, dict):
+        if is_external(value):
+            # this is a special serialized object pointing to some external place
+            res = func(value, value_path)
+        else:
+            res = {}
+            for key, val in sorted(value.items(), key=lambda dict_item: dict_item[0]):
+                path = copy.copy(value_path)
+                path.append(key)
+                res[_do_apply(func, key, apply_to_keys, path) if apply_to_keys else key] = _do_apply(func, val, apply_to_keys, path)
+    else:
+        res = func(value, value_path)
+    return res
+
+
 def apply(func, value, apply_to_keys=False):
     """
     Applies func to every possible member of value
     :param value: could be either a primitive object or a complex one (list, dicts)
     :param func: func to be applied
     :return:
     """
-    def _apply(func, value, value_path):
-        if value_path is None:
-            value_path = []
-
-        if isinstance(value, list) or isinstance(value, tuple):
-            res = []
-            for ind, item in enumerate(value):
-                path = copy.copy(value_path)
-                path.append(ind)
-                res.append(_apply(func, item, path))
-        elif isinstance(value, dict):
-            if is_external(value):
-                # this is a special serialized object pointing to some external place
-                res = func(value, value_path)
-            else:
-                res = {}
-                for key, val in sorted(value.items(), key=lambda dict_item: dict_item[0]):
-                    path = copy.copy(value_path)
-                    path.append(key)
-                    res[_apply(func, key, path) if apply_to_keys else key] = _apply(func, val, path)
-        else:
-            res = func(value, value_path)
-        return res
-    return _apply(func, value, None)
+    return _do_apply(func, value, apply_to_keys, None)
 
 
 def is_coroutine(val):