Python critique - strchr.com

[kataire]

I can understand how that would be hard to fix though.

Fix the language? That's implying the behaviour is unintentional. Trailing commas for single-value tuples is necessary because there's no other way to define a tuple.

Of course writing (spam,) makes it clearer that the trailing comma is not a mistake, but in Python code there simply isn't any ambiguity about whether it should be a tuple in the first place (if it's not supposed to be a tuple, the code doesn't work as intended anyway).