You can do that, but loose checking for truthiness is pretty pythonic. It's weird to put "true" in there if you think you're checking a boolean property. If you

You can do that, but loose checking for truthiness is pretty pythonic. It's weird to put "true" in there if you think you're checking a boolean property. If you know you're not, then you realize you need to call the function and then you can remove the "is".