1 # Licensed to the Apache Software Foundation (ASF) under one or more
2 # contributor license agreements. See the NOTICE file distributed with
3 # this work for additional information regarding copyright ownership.
4 # The ASF licenses this file to You under the Apache License, Version 2.0
5 # (the "License"); you may not use this file except in compliance with
6 # the License. You may obtain a copy of the License at
8 # http://www.apache.org/licenses/LICENSE-2.0
10 # Unless required by applicable law or agreed to in writing, software
11 # distributed under the License is distributed on an "AS IS" BASIS,
12 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 # See the License for the specific language governing permissions and
14 # limitations under the License.
16 from copy import deepcopy
19 def deepcopy_with_locators(value):
21 Like :func:`deepcopy`, but also copies over locators.
25 copy_locators(res, value)
29 def copy_locators(target, source):
31 Copies over ``_locator`` for all elements, recursively.
33 Assumes that target and source have exactly the same list/dict structure.
36 locator = getattr(source, '_locator', None)
37 if locator is not None:
39 setattr(target, '_locator', locator)
40 except AttributeError:
43 if isinstance(target, list) and isinstance(source, list):
44 for i, _ in enumerate(target):
45 copy_locators(target[i], source[i])
46 elif isinstance(target, dict) and isinstance(source, dict):
47 for k, v in target.items():
48 copy_locators(v, source[k])