def _getitem_by_keys(self, keys):
parent, key, _ = keylist_util.get_item(self, keys)
if type_util.is_dict(parent):
return parent[key]
elif type_util.is_list(parent):
return parent[key]
raise KeyError
def _get_by_keys(self, keys, default=None):
parent, key, _ = keylist_util.get_item(self, keys)
if type_util.is_dict(parent):
return parent.get(key, default)
elif type_util.is_list(parent):
return parent[key]
return default
def _getitem_by_keys(self, keys):
parent, key, _ = keylist_util.get_item(self, keys)
if type_util.is_dict(parent):
return parent[key]
elif type_util.is_list(parent):
return parent[key]
raise KeyError('Invalid keys: "{}"'.format(keys))
def _contains_by_keys(self, keys):
parent, _, _ = keylist_util.get_item(self, keys)
if type_util.is_dict(parent):
return True
elif type_util.is_list(parent):
return True
return False
def _pop_by_keys(self, keys, *args):
parent, key, _ = keylist_util.get_item(self, keys)
if type_util.is_dict(parent):
return parent.pop(key, *args)
elif type_util.is_list(parent):
return parent.pop(key)
if args:
return args[0]
raise KeyError
def test_get_item_with_empty_keys(self):
d = {}
item = keylist_util.get_item(d, [])
self.assertEqual(item, (
None,
None,
None,
))
def _delitem_by_keys(self, keys):
parent, key, _ = keylist_util.get_item(self, keys)
if type_util.is_dict_or_list(parent):
del parent[key]
return
elif type_util.is_tuple(parent):
# raise the standard TypeError
del parent[key]
raise KeyError('Invalid keys: "{}"'.format(keys))
def _pop_by_keys(self, keys, *args):
parent, key, _ = keylist_util.get_item(self, keys)
if type_util.is_dict(parent):
return parent.pop(key, *args)
elif type_util.is_list(parent):
return parent.pop(key)
elif type_util.is_tuple(parent):
# raise the standard TypeError
del parent[key]
if args:
return args[0]
raise KeyError('Invalid keys: "{}"'.format(keys))
def test_get_item_with_empty_dict(self):
d = {}
item = keylist_util.get_item(d, ['a'])
self.assertEqual(item, (
None,
None,
None,
))
item = keylist_util.get_item(d, ['a', 'b'])
self.assertEqual(item, (
None,
None,
None,
))
item = keylist_util.get_item(d, ['a', 0])
self.assertEqual(item, (
None,
None,
None,
))
def test_get_item_with_valid_keys(self):
d = {
'a': {
'b': {
'c': [
1,
2,
3,
],
},
},
}
item = keylist_util.get_item(d, ['a', 'b'])
self.assertEqual(item, (
d['a'],
'b',
d['a']['b'],
))
item = keylist_util.get_item(d, ['a', 'b', 'c'])
self.assertEqual(item, (
d['a']['b'],
'c',
[
1,
2,
3,
],
))
item = keylist_util.get_item(d, ['a', 'b', 'c', 0])
self.assertEqual(item, (
d['a']['b']['c'],
0,
1,
))