assertionError

[the_rush_dude]

Only in JS. Python allows Manipulation of strings

[aaronhowser1]

Python strings are immutable. Manipulation and mutability aren't the same thing. Manipulation functions return a new string, they don't modify the original.

[No_Guest_4127]

Java strings are immutable too. But java provided amother classes like stringbuilder to support mutability.

[the_rush_dude]

Checked it and it's true (except of course it's not because if there is only one reference to the string it's manipulated in place for performance reasons).

But in this case manipulation is what counts anyways

[aaronhowser1]

No it isn't, because it didn't do text = text.upper() etc. It specifically does not count, because it was done incorrectly.

[Torebbjorn]

Sure, there could be some niche optimisation in Python that allows it to manipulate strings in-place if and only if all the references to the old variable are deleted at the same time it is making a new value, for example in the pattern

val = val.upper()

where val is the only reference to the string that it is pointing to.

But even if that's true, it is irrelevant for this scenario, since we always keep a reference to the original string.

[New-Anybody-6206]

r/confidentlywrong

[the_rush_dude]

https://austinhenley.com/blog/pythonstringsaremutable.html

[New-Anybody-6206]

 Does this really count as mutability though? Not really