In python 3.6.8, 3.7.3, 3.7.4, 3.7.5, 3.7.12, 3.8.8 versions, the output is False as shown below.

Python 3.7.5 (tags/v3.7.5:5c02a39a0b, Oct 15 2019, 00:11:34) [MSC v.1916 64 bit (AMD64)] on win32
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>>> print(True == False == False)
False

However, in the openjdk1.8 version, the output is "true" as shown below. 

public class Test {
	public static void main(String[] args) throws Exception{
		System.out.println(true == false == false);
	}
}

> java Test
true

In my opinion, "True" seems to be correct.

This is not a bug. Please check the docs on the ternary operator:

https://docs.python.org/3/reference/expressions.html#comparisons

In particular:

Comparisons can be chained arbitrarily, e.g., x < y <= z is equivalent to x < y and y <= z, except that y is evaluated only once (but in both cases z is not evaluated at all when x < y is found to be false).



THis means that

True == False == False is really True == False and False == False wich is False and True which is False

> True == False == False is really True == False and False == False 
> wich is False and True which is False

Moreover, since the left-hand comparison is `True == False`, which evaluates to False, the right-hand comparison doesn't even get evaluated. 

In the following example, print(3) doesn't get called because the left-hand comparison, `None != None`, is False:

    >>> print(1) != print(2) == print(3)
    1
    2
    False