Problem Statement
How does defining __slots__ typically affect memory and attribute access?
Explanation
__slots__ removes the per-instance dictionary and stores fields in a fixed structure. This cuts memory per instance and can make attribute lookups a bit faster.
It also limits dynamic attribute creation unless you include __dict__ in slots.
Code Solution
SolutionRead Only
class Row:
__slots__=('a','b')
def __init__(self,a,b): self.a=a; self.b=b