Python question w.r.t arrays

Question

What changes needs to be done to make the code below error-free?

def fun(*a)
i=0
for v in a:
if v==0:
arg[i]=1
i+=1
return a
print (fun(5,2,0,4,0))

Credit to Javier.I. Rivera R. for the question :)

Answer 1

You could do it like this (although it's unnecessarily lengthy):

def fun(*a):
arg = []
i=0
for v in a:
if v==0:
arg.append(1)
else:
arg.append(a[i])
i+=1
return arg
print (fun(5,2,0,4,0))

The main problems:

1.) Colon was missing;
2.) Tuple values can't be changed.

A shorter way:

def fun(*a):

return tuple(n if n != 0 else 1 for n in a)
print (fun(5,2,0,4,0))

Answer 2

The purpose of the function is to change all 0s in the array to 1s.

Answer 3

What is the purpose of the function? Without knowing that, how would it be possible to help?