warning: delta is never used in function process

[LinuxUserGD]

Godot version:
master (5d09877)

related issue: #21180

OS/device including version:
Linux

Issue description:
Do I have to ignore this warning or can I replace delta with another String that doesn't trigger the warning?

Steps to reproduce:

func _process(delta):
   pass

[rcorre]

pylint will not complain about unused variables starting with _. Should godot do the same?

[rcorre@desktop-arch tmp]$ echo -e 'def forp(thing):\n    return 1' > test.py
[rcorre@desktop-arch tmp]$ pylint test.py -d missing-docstring
************* Module test
test.py:1:9: W0613: Unused argument 'thing' (unused-argument)

--------------------------------------------------------------------
Your code has been rated at 5.00/10 (previous run: -5.00/10, +10.00)

[rcorre@desktop-arch tmp]$ echo -e 'def forp(_thing):\n    return 1' > test.py
[rcorre@desktop-arch tmp]$ pylint test.py -d missing-docstring

-------------------------------------------------------------------
Your code has been rated at 10.00/10 (previous run: 5.00/10, +5.00)

It also respects dummy and _, though I prefer _delta as it is obvious what the variable is if it is needed in the future.

[akien-mga]

See #19993 (comment)

[vnen]

I'll add the underscore prefix convention to ignore the unused variable.

[aaronfranke]

@vnen Also do this for functions with names starting with underscores, so that default Godot functions like _process() don't have to be changed (and delta looks cleaner than _delta IMO).

[vnen]

@aaronfranke No because then there's no way to opt-in for this type warning. You can change argument names at will, but the names of those virtual functions are forced. Also _delta might not look clean, but if you're actually using the argument then you don't need the underscore.

[LinuxUserGD]

I still get this warning:

The argument 'delta' is never used in the function '_process'.
----------

[aaronfranke]

Change your code to this:

func _process(_delta):

We might wish to make this the default for the template for new scripts.

[ghost]

now my godot just crashes the game window and doesnt even give any errors what should i do

edit: here is my code

extends Sprite

func _ready():
	pass

func _process(_delta):
	if Input.is_key_pressed(KEY_W):
		self.position.y-= 1
	if Input.is_key_pressed(KEY_S):
               self.position.y+= 1

[LinuxUserGD]

@Coder6969696
Which Godot version?
Does it also crash if just delta is used?
If it's latest master, it could crash because of using self directly. Better open a new issue with add a minimal reproduction project.