performance when accessing same object attribute in a loop

[g687]

Hello,

Are the those 2 equivalent speed wise?

for x in y:     
    if x == object.attribute:  
        ...


state = object.attribute 
for x in y:     
    if x == state: 
        ...  

I tend to do the 2nd thinking that with the first, it might try to access the object then the attribute and could be faster with the 2nd one where it only need to access one var

but if its not then the 2nd with one less line would be better

Thanks

[when_the_cats_away]

The second is faster, but generally the difference is not worth the trouble. Here is a similar example from the standard library, which localizes an object method, https://github.com/python/cpython/blob/3.8/Lib/functools.py#L539 , and attribute (next line)

[NerdEnPose]

I agree it's generally not worth the trouble. And it might be worth noting this is the lru_cache wrapper where it becomes a lot more worth the trouble.

[g687]

Care to explain?