none_var = None fav_color = "red" # Replace the ? with the "is" keyword to check if none_var is None is_none_var_none = none_var is None # Finish the code to check if fav_color is not equal to "green" is_fav_color_green = fav_color is not "green"
Is or isn't
Much like the equals/not equals operator, there is the
is not operator.
For now, use the
is keyword instead of
is not instead of
!= when checking equality of booleans and the None datatype as a more semantic way of checking equality. For numbers and strings, it's still best to use