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Python Introducing Tuples Getting to Know Tuples Getting to Know Tuples Recap

Jorgen Rasmussen
Jorgen Rasmussen
3,367 Points
Posted by Jorgen Rasmussen
Jorgen Rasmussen
3,367 Points

The question Select any valid tuples: seems to have no correct answers. None end with a comma

None of the answers seem correct as we were told in the instructions that a tuple must have a comma after every object including the last one, correct?

2 Answers

johndavidsnieg
johndavidsnieg
2,146 Points

The only time that the last object in a tuple is required to be followed by a comma is when the tuple contains only one object, so the comma shows that it is a tuple not just a single object contained in a variable. For example: if you wanted the variable "var" to contain the integer 1 you could write

#Not a tuple
var = 1

But if you wanted var to contain a tuple with only one value, you would write

var = 1,
#or if you wanted to use parentheses
var = (1,)

But when you have multiple items in a tuple, you do not need to have a comma after the last one as the interpreter is able to determine it is a tuple by the syntax of the previous objects in the tuple.

Jorgen Rasmussen
Jorgen Rasmussen
3,367 Points
Jorgen Rasmussen
Jorgen Rasmussen
3,367 Points

Hi Johndavidsnieg, Thank you for your reply. This makes sense

mon Wil
mon Wil
2,007 Points
mon Wil
mon Wil
2,007 Points

Thanks for clarifying this!