To my knowledge:
C++ and DGE (Da Vinci Game Engine, built-in)
C++ and SDL (built-in)
BennuGD
LOVE
That's about it so far. Pygame and Python haven't been ported yet (and I don't know if it will be, though I would absolutely love it if they were). So far, of the languages available, BennuGD is pretty easy; I disliked LOVE (and Lua) because there isn't really built-in object oriented programming (though there are external object-oriented programming libraries). To do games in LOVE and Lua, you would have to use arrays as lists of objects, where an entry represents an object, like so:
enemies = {{x:0, y:0, hp:5}, {x:128, y:256, hp:10}}
or something like that. Then, you'd run through the array with a function to move and update the enemies. That's not really my cup o' tea. BennuGD also doesn't have object-oriented programming, so that wasn't really an option (for me, anyway), but I think I like it better than Lua. If I were you, I'd go with BennuGD if you don't want to go with SDL.