I’m trying to make a simple class. class class_circle: def __init__(self, r): self.r = r def show(self): fill(255) circle(0,0,self.r) c = class_circle(100) def setup(): size(1280, 720) def draw(): background(0) c.show() run() but i get the error …

Hi, Is there the same error with a simple program (without any class, only with setup and draw)? What is the function run() ?

thanks for helping me out josephh. The function run is from p5. I guess it calls setup and then runs the draw loop. nothing happens without the run command. Brilliant suggestion for fixing the error. I thought I’ve checked everything but I forgot the position should be a vector. So in the show() …

I just realised that your code is working fine on my machine using Processing.py Reading the documentation for the circle() function, the first two parameters are the x and y location, it’s not a tuple : https://py.processing.org/reference/circle.html You are using Processing.py right? It seems th…

For p5 , you must use a tuple for your x-y coordinates: circle((0, 0), self.r)

ty @josephh . I’m usig p5py . As I understood proccesing.py is only python2.7 doesn’t let me import whatever python package I want in my own editor. @tabreturn ty. If I ever learn how to contribute to a package I would love to make pyp5 return an error code like “First index should be tuple, not sca…

[image] renec112: If I ever learn how to contribute to a package I would love to make pyp5 return an error code like “First index should be tuple, not scalar” @villares is actually looking at possibly creating API wrapper or fork to address these kinds of mismatches. See: API compatibility fo…

Than you for this solution @jeremydouglass . I’m new to devloping python packages. Why not add these helpful error message in the main package? To me it seems helpful - but I would love to know what an experienced developer thinks

[image] renec112: Why not add these helpful error message in the main package? It would be helpful, I agree! The only reason I can think of not to would be if the extra error handling incurred a performance hit – or if the method could be made smarter by handling non-tuple arguments correctly…

I see - Thank you :slight_smile:

Simple python class wont render Invoking <bound method Sketch.on_timer of Sketch> (p5py)

Processing.py

jeremydouglass May 19, 2020, 9:53pm 7

@villares is actually looking at possibly creating API wrapper or fork to address these kinds of mismatches. See: API compatibility for p5py

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Simple python class wont render Invoking <bound method Sketch.on_timer of Sketch> (p5py)

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