There are important differences between Python 2 and 3, so it's often useful to know which version of the interpreter is running your code. The straightforward method is something like this:
def get_python_version(): import sys return sys.version_info.major
But you can exploit other differences to come up with other solutions to this. My favorite so far is this:
def get_python_version(): version = 3;[2 for version in range(3)] return version
What's the most creative/diabolical/entertaining snippet you can come up with that returns the Python version?