Python Mode error: no viable alternatives at input 'self'.

JamesWlf

I'm trying to make an instance of a very simple class draw an ellipse using a.. umm... method? What am I doing wrong?

pointies = []
pnum = 123

def setup():
    size (600, 300)
    indicator = width/2
    """Pointies = (i for i in range(0,pnum))"""

    for i in range (0, pnum):
        x = map (i, 0, pnum, 0, width)
        y = noise(x,indicator )
        pointyinst = Pointy(x,y)
        pointies.append(pointyinst)

def draw():
    noStroke
    fill(100)
    for i in pointies:
        i.display()

class Pointy:
    """Una clase de puntos"""
    def __init__ (self, x, y, z = 0):
        self.x = x
        self.y = y
        self.z = z

    def display(self):
        #point(self.x, self.y)
        ellipse (self.x self.y, 3,3)

GoToLoop

My Python knowledge is in its infancy. And I've never used "Python Mode" before! :-@
At 1st glance, your code seems correct. The only doubt I've got is whether Python got nested classes like Java!
The point is, whether class Pointy can directly access PApplet's members like ellipse() for example.
Would it need the main sketch's reference in order to call ellipse() and other Processing's API? :-S

I've also read somewhere that "Python Mode" is based on the old Python 2 instead of the latest 3! :-&
Perhaps we'd need to use the explicit class declaration format: class Pointy(object):
rather than its shorter modern version: class Pointy:

P.S.: This thread had "Python Mode" problems too:
http://forum.processing.org/two/discussion/6346/controlp5-and-python-mode

JamesWlf

I found the main error: I was missing a comma:

ellipse (self.x**,** self.y, 3,3)

:)

quaestor

Perhaps we'd need to use the explicit class declaration format: class Pointy(object): rather than its shorter modern version: class Pointy:

Yes, that's actually a very good idea.

As far as Python 2 vs. 3: The Python mode's underlying technology, jython, is based on Python 2. I'm not aware of anything like jython for Python 3. The last mention of Python 3 on the jython roadmap is over four years old.