An updated version of George Lydakis python script on lambda functions: http://ldkge.com/complex-python-lambdas.html

complex-python-lambdas.py

_ = (
    lambda: [
        _
        # Imports
        for sys in [__import__('sys')]
        for math in [__import__('math')]
        
        # Helper functions
        for sub in [lambda *vals: None]
        for fun in [lambda *vals: vals[-1]]
        
        # Echo (just a print wrapper)
        for echo in [lambda *vals: sub(
            print(*vals, sep="\n"))]
        
        # Class definition
        for Cylinder in [type('Cylinder', (object,), dict(
            __init__ = lambda self, radius, height: sub(
                setattr(self, 'radius', radius),
                setattr(self, 'height', height)
            ),
            volume = property(
                lambda self: fun(*[
                    self.height * top_area
                    for top_area in [math.pi * self.radius ** 2]
                ])
            )
        ))]

        # Main function definition
        for main in [
            lambda: sub(
                [_ for factor in [1, 2, 3] if sub(
                    [
                        _
                        for my_radius, my_height in [[10 * factor, 20 * factor]]
                        for my_cylinder in [Cylinder(my_radius, my_height)]
                        if echo(
                            "A cylinder with a radius of %.1fcm and a height "
                            "of %.1fcm has a volume of %.1fcm³."
                            % (my_radius, my_height, my_cylinder.volume)
                        )
                    ],
                )]
            )
        ]
    # Main function execution
    if main()
    ] 
)()