I am using a piece of code and am trying to debug it.
But something weird is happening.
In one part, I have this line:
vals = find(A)
But it gives me this error :
global name 'find' is not defined
I thought find was like an inbuilt function in python??
Clearly I am mistaken.
But just want to check.. in case I am forgetting to include anything.
find is a string method: