映射问题，用于循环和列表理解

Question

kn = input().split(" ")
n = int(kn[0])
k = int(kn[1])
niz = list(map(int, input().split(" ")))
newlis = []   
def rad(o):   
    return sum(niz[num:(num+k+o)])/(k+o)   
def posao(k):   
    return max(list(map(rad, range(0, n-k))))
for num in range(len(niz[0:(n-k+1)])):
    newlis.append(max(list(map(rad, range(0, n-num))))) 
#newlis = [max(list(map(rad, range(0, n-num)))) for num in range(len(niz[0:(n-k+1)]))]
print(max(newlis))

So I've got this working with a for loop and now I want to use the commented out list comprehension (or even map() ) to make it faster. Problem is, it keeps returning that num is not defined when I use either. I'm completely aware the code is very messy and unclean, but if someone could tell me where I'm going wrong with this, I'd appreciate it. I'm only a beginner with python.

Answer 1

def rad(o):   
    return sum(niz[num:(num+k+o)])/(k+o)  // I guess the problem should 
   // be here... as ^ num is not defined in this function and neither it is a global variable

Try passing num as argument

def rad(o,num):   
    return sum(niz[num:(num+k+o)])/(k+o)
newlis = [max([rad(x, num) for x in range(0, n-num)]) for num in range(len(niz[0:(n-k+1)]))]