diff options
Diffstat (limited to 'django/utils/datastructures.py')
| -rw-r--r-- | django/utils/datastructures.py | 34 |
1 files changed, 16 insertions, 18 deletions
diff --git a/django/utils/datastructures.py b/django/utils/datastructures.py index 18c91aa5e8..b5858b8076 100644 --- a/django/utils/datastructures.py +++ b/django/utils/datastructures.py @@ -38,8 +38,8 @@ class OrderedSet: return len(self.dict) def __repr__(self): - data = repr(list(self.dict)) if self.dict else '' - return f'{self.__class__.__qualname__}({data})' + data = repr(list(self.dict)) if self.dict else "" + return f"{self.__class__.__qualname__}({data})" class MultiValueDictKeyError(KeyError): @@ -68,6 +68,7 @@ class MultiValueDict(dict): which returns a list for every key, even though most web forms submit single name-value pairs. """ + def __init__(self, key_to_list_mapping=()): super().__init__(key_to_list_mapping) @@ -92,24 +93,22 @@ class MultiValueDict(dict): super().__setitem__(key, [value]) def __copy__(self): - return self.__class__([ - (k, v[:]) - for k, v in self.lists() - ]) + return self.__class__([(k, v[:]) for k, v in self.lists()]) def __deepcopy__(self, memo): result = self.__class__() memo[id(self)] = result for key, value in dict.items(self): - dict.__setitem__(result, copy.deepcopy(key, memo), - copy.deepcopy(value, memo)) + dict.__setitem__( + result, copy.deepcopy(key, memo), copy.deepcopy(value, memo) + ) return result def __getstate__(self): - return {**self.__dict__, '_data': {k: self._getlist(k) for k in self}} + return {**self.__dict__, "_data": {k: self._getlist(k) for k in self}} def __setstate__(self, obj_dict): - data = obj_dict.pop('_data', {}) + data = obj_dict.pop("_data", {}) for k, v in data.items(): self.setlist(k, v) self.__dict__.update(obj_dict) @@ -231,7 +230,7 @@ class ImmutableList(tuple): AttributeError: You cannot mutate this. """ - def __new__(cls, *args, warning='ImmutableList object is immutable.', **kwargs): + def __new__(cls, *args, warning="ImmutableList object is immutable.", **kwargs): self = tuple.__new__(cls, *args, **kwargs) self.warning = warning return self @@ -264,6 +263,7 @@ class DictWrapper(dict): Used by the SQL construction code to ensure that values are correctly quoted before being used. """ + def __init__(self, data, func, prefix): super().__init__(data) self.func = func @@ -277,7 +277,7 @@ class DictWrapper(dict): """ use_func = key.startswith(self.prefix) if use_func: - key = key[len(self.prefix):] + key = key[len(self.prefix) :] value = super().__getitem__(key) if use_func: return self.func(value) @@ -314,9 +314,7 @@ class CaseInsensitiveMapping(Mapping): def __eq__(self, other): return isinstance(other, Mapping) and { k.lower(): v for k, v in self.items() - } == { - k.lower(): v for k, v in other.items() - } + } == {k.lower(): v for k, v in other.items()} def __iter__(self): return (original_key for original_key, value in self._store.values()) @@ -335,11 +333,11 @@ class CaseInsensitiveMapping(Mapping): for i, elem in enumerate(data): if len(elem) != 2: raise ValueError( - 'dictionary update sequence element #{} has length {}; ' - '2 is required.'.format(i, len(elem)) + "dictionary update sequence element #{} has length {}; " + "2 is required.".format(i, len(elem)) ) if not isinstance(elem[0], str): raise ValueError( - 'Element key %r invalid, only strings are allowed' % elem[0] + "Element key %r invalid, only strings are allowed" % elem[0] ) yield elem |