Question

I am currently working on this code for my homework assignment involving Matrix Implementation:

class MyMatrix(object):
    def __init__(self, n, m, t):
        self.n = n
        self.m = m
        self.t = t

        self.data = []
        for i in range(0, self.n):
            row = []
            for i in range (0, self.m):
                row.append(self.t())
            self.data.append(row)

    def set(self, i, j, v):
        self.data[i][j] = v

    def get(self, i, j):
        self.data[i][j]

    def __str__(self):
        n = self.__class__.__name__ + "({})".format((self.n,self.m))
        for i in range(0, self.n):
            for j in range(0, self.m):
                s += str(self.get(i,j)) + " "
            s += "\n"
        return s

class MySparseMatrix(MyMatrix):


    def __init__(self, n, m, t):
        self.n = n
        self.m = m
        self.t = t
        self.data = {}

    def set(self, i, j, v):
        key = (i, j)
        self.data[key] = v

    def get(self, i,j):
        key = (i, j)
        return self.data.get(key, self.t())

我正在尝试打印：

tt = MySparseMatrix(int, 2, 2)
tt.set(0,0,11)
tt.set(0,1,5)
tt.set(1,0,2)
print(tt.get(0,1))
print("tt = ", tt)

但它给了我

TypeError: 'int' object is not callable

有关如何解决此错误的任何建议？我是Python的新手。

Answer 1

您正在调用self.t()这是一个整数tt = MySparseMatrix(int, 2, 2)。将整数值2传递给实例变量t。为变量找一个有意义的名称可以帮助你避免这种错误。

示例：

>>> a = 1
>>> a()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: 'int' object is not callable

Answer 2

最后一个返回行self.t()有问题删除paranthas。 t是一个整数，您正在尝试执行导致错误的方法调用。

对象不可调用

2 个答案: