将 set() 转换为 int python

Question

So my question is how can you (or if it can be done at all) convert data type of set to an integer?

for example: (IS A TOY EXAMPLE TO EXPLAIN WHAT I'M TRYING TO DO)

A = [1, 2, 6, 4, 3]
a_set = set(A)
a_int = a_function(a_set)
print(type(a_int))

Output: <class 'int'>

So any assistance in the conversion of a set() to an int would be greatful. I have seen this how-can-i-convert-a-set-of-numeric-strings-to-a-set-of-integers which I thought may help but no luck. So thanks in advance.

What I'm actually trying to do is that I want to return a set that has only one element inside it but I want to return it as an int.

Answer 1

You are not trying to covert a set to an int . You are merely trying to "pull" out the content of the set.

If you are certain the set contains only one element, you can use .pop :

print({1}.pop())

will output

1

If the set contains more than a single element, every call to pop will grab and return an arbitrary element from it.

Be careful, if the set is empty calling pop on it will raise a keyError exception.