How to fix this so that it could print in reverse?

Question

def reverse (a_string):
for i in range (len (a_string)-1,-1,-1)
rev = rev + a_string [i]
return rev
reverse ("make this reverse")
print (reverse)

Answer 1

def reverse (a_string):
rev = ""
for i in range (len (a_string)-1,-1,-1):
rev = rev + a_string [i]
return rev
print(reverse ("make this reverse"))