Is it possible to use slice in Python in list of complex objects with field of the object-CodePudding

I am new in Python and using python3. I have list og objects of type points

class Po:
    def __init__(self, x: int, y: int):
        self.x = x
        self.y = y

C = [Po(0, j) for j in range(10)]

and 2 dimensional array

m = [[j for i in range(2)] for j in range(10)]

I want to assign all fields x of C to values with index 0 from m like

C[:].x = m[:][0]

but python says list doesn't have field x. how can I do this and why I can' access x this way

CodePudding user response：

There's no specific syntax for this in Python. You'll just need to use a regular for loop.

for ci, mi in zip(C, m):
    ci.x = mi[0]

CodePudding user response：

Your "C" instance is itself a list, so in order to access it's x or y values, you need to call the index first. So this way you can access them:

for i in range(10):
    print(C[i].x)
    print(C[i].y)