Possible to append multiple lists at once? (Python)

Question

I have a bunch of lists I want to append to a single list that is sort of the \"main\" list in a program I\'m trying to write. Is there a way to do this in one line of code

Answer 1

To exactly replicate the effect of append, try the following function, simple and effective:

a=[]
def concats (lists):
    for i in lists:
        a==a.append(i)


concats ([x,y,z])
print(a)