df = get_all_securities() 报错无法运行 --------------------------------------------------------------------------- AttributeError Traceback (most recent call last) in ----> 1 df = get_all_securities() ~/miniconda3/envs/python/lib/python3.7/site-packages/jqdatasdk/utils.py in _wrapper(*args, **kwargs) 228 print("run jqdatasdk.auth first") 229 else: --> 230 return func(*args, **kwargs) 231 return _wrapper 232 ~/miniconda3/envs/python/lib/python3.7/site-packages/jqdatasdk/utils.py in hashable_cached_func(*args, **kwargs) 264 for k, v in kwargs.items() 265 } --> 266 return copy.deepcopy(cached_func(*_args, **_kwargs)) 267 hashable_cached_func.cache_info = cached_func.cache_info 268 hashable_cached_func.cache_clear = cached_func.cache_clear ~/miniconda3/envs/python/lib/python3.7/copy.py in deepcopy(x, memo, _nil) 159 copier = getattr(x, "__deepcopy__", None) 160 if copier: --> 161 y = copier(memo) 162 else: 163 reductor = dispatch_table.get(cls) ~/miniconda3/envs/python/lib/python3.7/site-packages/pandas/core/generic.py in __deepcopy__(self, memo) 5821 Standard signature. Unused 5822 """ -> 5823 return self.copy(deep=True) 5824 5825 def _convert( ~/miniconda3/envs/python/lib/python3.7/site-packages/pandas/core/generic.py in copy(self, deep) 5809 """ 5810 data = self._data.copy(deep=deep) -> 5811 return self._constructor(data).__finalize__(self) 5812 5813 def __copy__(self: FrameOrSeries, deep: bool_t = True) -> FrameOrSeries: ~/miniconda3/envs/python/lib/python3.7/site-packages/pandas/core/generic.py in __finalize__(self, other, method, **kwargs) 5247 """ 5248 if isinstance(other, NDFrame): -> 5249 for name in other.attrs: 5250 self.attrs[name] = other.attrs[name] 5251 # For subclasses using _metadata. ~/miniconda3/envs/python/lib/python3.7/site-packages/pandas/core/generic.py in __getattr__(self, name) 5271 if self._info_axis._can_hold_identifiers_and_holds_name(name): 5272 return self[name] -> 5273 return object.__getattribute__(self, name) 5274 5275 def __setattr__(self, name: str, value) -> None: ~/miniconda3/envs/python/lib/python3.7/site-packages/pandas/core/generic.py in attrs(self) 245 attrs is experimental and may change without warning. 246 """ --> 247 if self._attrs is None: 248 self._attrs = {} 249 return self._attrs ~/miniconda3/envs/python/lib/python3.7/site-packages/pandas/core/generic.py in __getattr__(self, name) 5271 if self._info_axis._can_hold_identifiers_and_holds_name(name): 5272 return self[name] -> 5273 return object.__getattribute__(self, name) 5274 5275 def __setattr__(self, name: str, value) -> None: AttributeError: 'DataFrame' object has no attribute '_attrs'