Difference Between Modulus Implementation in Python Vs Java

I've noticed differing implementations of the modulus operator in Python and Java.

For example, in Python:

>>> print -300 % 800
>>> 500

Whereas in Java:

System.out.println(-300 % 800);
-300

This caught me off guard, since I thought something as basic as modulus was universally interpreted the same way. I'm a fan of Python's interpretation (which I presume is borrowed from C), although I see the logic behind Java's implementation.

Which do you typically prefer? Is there any specific reason for the differing interpretations? I have no intention of starting a language war, simply curious.