Return a Gibica type derived from a Python type.

def bind_type(python_value):
    """Return a Gibica type derived from a Python type."""
    binding_table = {'bool': Bool, 'int': Int, 'float': Float}

    if python_value is None:
        return NoneType()

    python_type = type(python_value)

    gibica_type = binding_table.get(python_type.__name__)

    if gibica_type is None:
        raise TypeError('Impossible to recognize underlying type.')
    return gibica_type(python_value)