isinstance(dataset, (list,)) 和 isinstance(dataset, list) 的区别

Question

1. isinstance(dataset, (list,))
   
2. isinstance(dataset, list)

我知道 isinstance 用于查找特定变量是否属于该特定数据类型，但是您能否让我知道上面提到的 1 和 2 之间的确切区别

Answer 1

In this context, this is not much of a difference. The first one is used when you're trying to determine whether or not an object belongs to any of the datatypes are presented in the tuple. Look at the example below:

a = [3, 3, 2]
# a object is an instance of class list or str?
print(isinstance(a, (list, str)))
# it is equivalent with 
print(isinstance(a, list) or isinstance(a, str))

output:

True
True

for more complement explanations refer to here !