File "C:/Users/My/PycharmProjects/uitest/douban_movie.py", line 14, in <module> numbers = bs.find_all('li') AttributeError: 'NoneType' object has no attribute 'find_all' 直接报错了,NoneType的问题,那我们往上找一下原因,打印一下bs看看结果是什么 这次结果直接是None,说明在定位‘ol’的时候...
|append(...)| L.append(object) -> None --append object to end| |clear(...)| L.clear() -> None -- remove all itemsfromL| |copy(...)| L.copy() -> list --a shallow copy of L| |count(...)| L.count(value) -> integer --returnnumber of occurrences of value| |extend(....
|append(...)| L.append(object) -> None --append object to end| |clear(...)| L.clear() -> None -- remove all itemsfromL| |copy(...)| L.copy() -> list --a shallow copy of L| |count(...)| L.count(value) -> integer --returnnumber of occurrences of value| |extend(....
the return value is the same object. """ def count(self, value): # real signature unknown; restored from __doc__ """ T.count(value) -> integer -- return number of occurrences of value """#计数 return 0 def index(self, value...
Homogeneous: Objects of the same data type or the same semantic meaning, like a series of animals, fruits, colors, and so on. Heterogeneous: Objects of different data types or different semantic meanings, like the attributes of a car: model, color, make, year, fuel type, and so on.You...
class PostProcessing(object): def __init__(self, resultMap): self.resultMap = resultMap def sortByValue(self): return sorted(self.resultMap.items(),key=lambda e:e[1], reverse=True) def obtainTopN(self, topN): sortedResult = self.sortByValue() ...
在3.5 版更改: Add __qualname__ and gi_yieldfrom attributes to generators. The __name__ attribute of generators is now set from the function name, instead of the code name, and it can now be modified. 在3.7 版更改: Add cr_origin attribute to coroutines. inspect.getmembers(object[, pre...
CountAttributes CountCollection CountDictionary CountDynamicValue 計數器 CPPAddATLSupportToMFC CPPATLApplication CPPATLASPComponent CPPATLControl CPPATLDatabase CPPATLDialog CPPATLDynamicLibrary CPPATLEvent CPPATLFile CPPATLObject CPPATLProperty CPPATLServer CPPATLWebService CPPBlankApplication CPPBlankPhone CP...
Remove ImageCms.CmsProfile attributes deprecated since 3.2.0 #4768 [hugovk, radarhere] Remove long-deprecated Image.py functions #4798 [hugovk, nulano, radarhere] Add support for 16-bit precision JPEG quantization values #4918 [gofr] Added reading of IFD tag type #4979 [radarhere] Initiali...
class TreeNode(object): def __init__(self, x): self.val = x self.left = No...