Python program to Replace List Items With -1, 0, 1

listitem = [6,8,9,-2,0,1,-3,5,8,0,-6]
print(listitem)
for i in range(len(listitem)):
 if listitem[i] > 0:
  listitem[i] = 1
 elif listitem[i] < 0:
  listitem[i] = -1
 else:
  listitem[i] = 0
print(listitem)

[6, 8, 9, -2, 0, 1, -3, 5, 8, 0, -6]
[1, 1, 1, -1, 0, 1, -1, 1, 1, 0, -1]