AttributeError: 'int' object has no attribute 'isin'
时间: 2024-05-09 19:12:51 浏览: 11
AttributeError: 'int' object has no attribute 'isin' 错误通常出现在试图调用一个不属于整数对象的方法时,例如:
```
a = 5
a.isin([1, 2, 3])
```
在这个例子中,我们试图使用 isin 方法来检查整数 a 是否在列表 [1, 2, 3] 中,但是整数对象没有 isin 方法,因此会抛出 AttributeError。
如果您需要检查一个整数是否在列表中,可以使用 in 关键字,例如:
```
a = 5
if a in [1, 2, 3]:
print("a is in the list")
else:
print("a is not in the list")
```
相关问题
AttributeError: 'int' object has no attribute 'index'
这个错误提示是因为整数类型没有index()方法,只有列表、元组和字符串等类型才有。如果你想在整数中查找某个值的索引,可以将整数放入列表或元组中,然后再使用index()方法。例如:
```python
num_list = [1, 2, 3, 4, 5]
num = 3
if num in num_list:
index = num_list.index(num)
print("The index of {} is {}".format(num, index))
else:
print("{} is not in the list".format(num))
```
AttributeError: 'int' object has no attribute 'on'
This error occurs when you try to access an attribute or method of an integer object that does not exist. For example, if you try to call the "on" method on an integer object, you will receive this error message.
Here's an example of code that could cause this error:
```
num = 5
num.on()
```
In this case, "num" is an integer object with the value of 5. However, there is no "on" method available for integers, so Python raises an AttributeError.
To fix this error, you need to ensure that you are using the correct data types and that the attributes or methods you are trying to access actually exist for those data types.