Question

我尝试将一个元素附加到列表但是我收到了这个错误。我检查2个对象的类型是否相同，如果它们的类型相同，那么我追加它。所以下一个功能是我收到错误的地方。该类包含元素。

--aot

这是班级：

 def LogsBeiTyp(self,list,type):

    """
    Thid funftion return a list that contains all logs group by a type
    :param list: a list that contains all object logare
    :return: a list modified in such a way thet elements are gropu by type
    """

    l=[]

    for el in list:
        if el.get_type()==type:
            l.append(el)

    return l

这是我列表的地方

class Logare():

    """
     This   class contains information about a log
     It is known that each log has a date,type,description
    """

    def __init__(self,date,time,type,melldung):
        """

        The incresemnt function

        :param date: a  string which is written as "YYYY-MM-DD"
        :param type: a string that contains in cappital letters the type of thr log
        :param description: a string that contains more details about the log
        """

        self.date=date
        self.time=time
        self.type=type
        self.melldung=melldung

    def get_date(self):
        return self.date

    def get_time(self):
        return self.time

    def get_type(self):
        return self.type

    def get_melldung(self):
        return self.melldung

    def __str__(self):
        return '%s %s %s %s'%(self.date,self.time,self.type,self.melldung)

在函数get_all（）中，我构建了列表，而不是将其发送到我具有该功能的控制器

Answer 1

这可以通过使用isinstance来解决。使用这个构造你可能有：

def LogsBeiTyp(self,list,class_type):

    """
    Thid funftion return a list that contains all logs group by a type
    :param list: a list that contains all object logare
    :return: a list modified in such a way thet elements are gropu by type
    """

    l=[]

    for el in list:
        if isinstance(el, class_type):
            l.append(el)

    return l

如上所述，使用内置（即类型）作为变量名称的评论并不是一个好主意。

在Logare类中调用它并在元素列表中查找Logare实例将类似于：

my_logs = self.LogsBeiTyp(elements, Logare)

＆＃39; STR＆＃39;对象没有属性＆＃39; get_type＆＃39;错误

1 个答案: