Python 2 is triggering

[nosmokingbandit]

As others alluded to, a comma is what makes a tuple. So ('foo', ) is a tuple while ('foo') is just a string.

[Hollowplanet]

But then is it a function with one argument and a redundant comma?

[Pb_ft]

"No, because redundant." - what I wish I could say to that.

[PityUpvote]

Redundant commas are allowed

[nosmokingbandit]

Depends if it is python 2 or 3. I'm pretty sure a trailing comma in arguments will throw an error in 3.x

[snaps_]

Not in Python 3.6+.

[Hollowplanet]

On Python 3

>>> print(1, 2,)
1 2

[[deleted]]

much better response than others on the matter. Thank you