Why am I getting an invalid syntax

Question

I am trying to set my init and when trying to set (x,y), I am getting an invalid Syntax error on the open parentheses on the coordinates.

I feel like this is going to be an obvious mistake but I've been looking at it too long and could use some fresh eyes...

def __init__(self, (x,y), size, color = (255,255,255)):
        self.x = x
        self.y = y
        self.size = size
        self.color = color
        self.width = width

Why are there parens around x, y? What are you trying to achieve? — JBGreen, Jul 05 '19 at 21:15
python 3 does not support sublist parameters. it should be def __init__(self,x,y,size,color=(255,255,255)): — Arun Gopinathan, Jul 05 '19 at 21:18
https://stackoverflow.com/questions/10607293/nested-arguments-not-compiling — jonrsharpe, Jul 05 '19 at 21:20
Didn't realize tuple parameter unpacking was even a thing (in Python 2 only, not anymore in Python 3). — JBGreen, Jul 05 '19 at 21:32

score 3 · Accepted Answer · answered Jul 05 '19 at 21:19

3

Since x and y are elements of a tuple (if that's what you're trying to create) you don't need to assign individual element in parameters.

def __init__(self, coordinates, size, color = (255,255,255)):
        self.x = coordinates[0]
        self.y = coordinates[1]
        self.size = size
        self.color = color
        self.width = width

answered Jul 05 '19 at 21:19

oo00oo00oo00

473
6
16

1

Or `self.x, self.y = coordinates`. Which has the advantage of throwing an exception if there are more than 2 values in the list/tuple/whatever. – Aran-Fey Jul 05 '19 at 22:28

score -1 · Answer 2 · answered Jul 05 '19 at 22:00

You have to write __init__(self, v , size, color = (255,255,255)) and pass every vas a list.

def __init__(self, v, size, color = (255,255,255)):
        self.x = v[0] #first coordinate of v
        self.y = v[1] #second coordinate of v
        self.size = size
        self.color = color
        self.width = width

Why am I getting an invalid syntax

2 Answers2