I am writing a code that requires adding the element of list a and list b together to form a new list c
a=[0]
and list b is a list with len(b)<=1
However when b=[]
a=[0]
b=[]
c=[x + y for x, y in zip(a, b)]
c=[]
What is the easiest way to change the code to make c=[0] when b=[] without using an if statement?