How to access the adjacent cells of each elements of matrix in python? Question: Here two cells are considered adjacent if they share a boundary. For example : A = 5 6 4 2 1 3 7 9 8 Here adjacent elements to index 0,0 is at index [0,1] and [1,0] and for index 1,1 …
Function closure performance Question: I thought that I improve performance when I replace this code: def f(a, b): return math.sqrt(a) * b result = [] a = 100 for b in range(1000000): result.append(f(a, b)) with: def g(a): def f(b): return math.sqrt(a) * b return f result = [] a = 100 func = g(a) for …
python parent class 'wrapping' child-class methods Question: I have the following situation in my python code: class Parent(object): def run(self): print “preparing for run” self.runImpl() print “run done” class Child(Parent): def runImpl(self): print “child running” However, I have cases with several generations of such ‘decorators’, doing different setup/teardown steps before and after ‘runImpl’, and currently …
