list_name.remove(element) 參數: element– 它代表要刪除的元素。 返回值: 這個方法的返回類型是<class 'NoneType'>,它什麽都不返回。 範例1: # Python Listremove() Method with Example# declaring the listcars = ["BMW","Porsche","Audi"
最好的方法是从列表中过滤掉 None: features= [ [[1,2,3],[1,2,3],[1,2,3]] ,None , [[1,2,3],[1,2,3],[1,2,3]], [[1,2,3],[1,2,3],[1,2,3]], None,None,[[1,2,3],[1,2,3],[1,2,3]] ] final_features = list(filter(lambda x:x is not None, features))...
element –It represents the element to be removed from the list.Return ValueThe return type of this method is <class 'NoneType'>, it returns nothing. Example 1: Use of Set remove() Method# declaring the sets cars = {"Porsche", "Audi", "Lexus", "Mazda", "Lincoln"} nums = {100, ...
260 + msg = "object of type 'NoneType' has no len" 261 + err = TypeError 262 262 elif parser.engine == "pyarrow": 263 - msg = ( 264 - "the 'pyarrow' engine does not support sep=None with delim_whitespace=False" 265 - ) 263 + msg = "'utf-8' codec can't decode...
auto future = c10::make_intrusive<c10::ivalue::Future>(NoneType::get()); 100 + if (get_num_threads() > 1) { 101 + tg_.run( 102 + [func, future]() { 103 + func(); 104 + future->markCompleted(); 105 + } 106 + ); 107 + } else { 108 + func(); 109 ...