Bug with python mode

[Sierra_Alpha_Romeo.P]

@CodeMasterX

It says here that the variables declared at the top of the code will automatically become global variables. So why does it still need global? Is the tutorial outdated or for a different version of processing.py?

The tutorial written is correct and not obselete.

It says:

@CodeMasterX

So why does it still need global?

You need to include the keyword 'global ’ only when you want to reassign that variable inside a function.

@CodeMasterX

ys += g
y += ys

Here, you are reassigning the value of the global variable inside the draw() function.

If you do not want to include that keyword, another alternative is first overriding the value of the global variables inside the draw() function and then assigning them.

ys = 0
g = 0.1
x = 300
y = 50

def setup():
    size(600,600)
    delay(1000)
def draw():
    ys = 0
    g = 0.1
    x = 300
    y = 50
    background(0)
    ys += g
    y += ys
    ellipse(x,y,15,15)

Hope this helps!