One type of data is called a tuple, where we use a pair of parentheses,
(), to include all input values. One feature of a tuple variable is that we cannot modify its value. This special property could be valuable if some our variables should never be changed.A tuple is different from a dictionary, which stores data with key-value pairs. It is not ordered and it requires that the keys are hashable. Unlike a tuple, the value for a dictionary can be modified.
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