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# -*- coding: utf-8 -*- |
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from itertools import chain |
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from benedict.dicts.base import BaseDict |
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from benedict.dicts.keylist import keylist_util |
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from benedict.utils import type_util |
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class KeylistDict(BaseDict): |
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def __init__(self, *args, **kwargs): |
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super(KeylistDict, self).__init__(*args, **kwargs) |
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def __contains__(self, key): |
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if type_util.is_list_or_tuple(key): |
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return self._contains_by_keys(key) |
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return super(KeylistDict, self).__contains__(key) |
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def _contains_by_keys(self, keys): |
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parent, _, _ = keylist_util.get_item(self, keys) |
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if type_util.is_dict_or_list_or_tuple(parent): |
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return True |
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return False |
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def __delitem__(self, key): |
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if type_util.is_list_or_tuple(key): |
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self._delitem_by_keys(key) |
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return |
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super(KeylistDict, self).__delitem__(key) |
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def _delitem_by_keys(self, keys): |
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parent, key, _ = keylist_util.get_item(self, keys) |
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if type_util.is_wildcard(key): |
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self[keys[:-1]].clear() |
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return |
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elif type_util.is_dict_or_list(parent): |
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del parent[key] |
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return |
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elif type_util.is_tuple(parent): |
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# raise the standard TypeError |
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del parent[key] |
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raise KeyError(f"Invalid keys: '{keys}'") |
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def __getitem__(self, key): |
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if type_util.is_list_or_tuple(key): |
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return self._getitem_by_keys(key) |
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return super(KeylistDict, self).__getitem__(key) |
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def _getitem_by_keys(self, keys): |
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parent, key, _ = keylist_util.get_item(self, keys) |
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if type_util.is_list(parent) and type_util.is_wildcard(key): |
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return parent |
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elif type_util.is_list_of_dicts(parent) and type_util.any_wildcard_in_list( |
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keys |
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): |
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data = [item.get(key) for item in parent] |
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if type_util.is_list_of_dicts(data) or type_util.is_list_of_list(data): |
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return list(chain.from_iterable(data)) |
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return data |
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elif type_util.is_dict_or_list_or_tuple(parent): |
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return parent[key] |
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raise KeyError(f"Invalid keys: '{keys}'") |
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def __setitem__(self, key, value): |
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if type_util.is_list_or_tuple(key): |
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self._setitem_by_keys(key, value) |
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return |
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super(KeylistDict, self).__setitem__(key, value) |
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def _setitem_by_keys(self, keys, value): |
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keylist_util.set_item(self, keys, value) |
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def get(self, key, default=None): |
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if type_util.is_list_or_tuple(key): |
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return self._get_by_keys(key, default) |
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return super(KeylistDict, self).get(key, default) |
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def _get_by_keys(self, keys, default=None): |
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parent, key, value = keylist_util.get_item(self, keys) |
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if type_util.is_list(parent) and type_util.is_wildcard(key): |
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return parent |
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elif type_util.is_wildcard(keys[-2]): |
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if type_util.is_list_of_dicts(parent): |
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return [item.get(key) for item in parent] |
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elif type_util.is_list_of_list(parent): |
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return value |
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elif type_util.is_dict(parent): |
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return parent.get(key, default) |
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elif type_util.is_list_or_tuple(parent): |
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return parent[key] |
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return default |
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def pop(self, key, *args): |
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if type_util.is_list_or_tuple(key): |
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return self._pop_by_keys(key, *args) |
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return super(KeylistDict, self).pop(key, *args) |
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def _pop_by_keys(self, keys, *args): |
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parent, key, _ = keylist_util.get_item(self, keys) |
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if type_util.is_dict(parent): |
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return parent.pop(key, *args) |
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elif type_util.is_list(parent) and type_util.is_wildcard(key): |
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del self[keys[:-1]] |
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return parent |
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elif type_util.is_list_of_dicts(parent) and type_util.any_wildcard_in_list( |
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keys |
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): |
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return [_item.pop(key) if key in _item else None for _item in parent] |
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elif type_util.is_list(parent): |
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return parent.pop(key) |
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elif type_util.is_tuple(parent): |
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# raise the standard TypeError |
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del parent[key] |
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if args: |
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return args[0] |
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raise KeyError(f"Invalid keys: '{keys}'") |
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def set(self, key, value): |
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self[key] = value |
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def setdefault(self, key, default=None): |
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if key not in self: |
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self[key] = default |
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return default |
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return self[key] |
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fabiocaccamo /
python-benedict
