Python - Declare two variable with the same values at the same time

Question

a=[1,2,3]
b=[1,2,3]

Is there a way to do this on one line? (obviously not with ";")

a,b=[1,2,3] 

doesn't work because of

a,b,c=[1,2,3]

a=1 b=2 c=3

Answer 1

In [18]: a,b=[1,2,3],[1,2,3]

In [19]: a
Out[19]: [1, 2, 3]

In [20]: b
Out[20]: [1, 2, 3]

you may also want to do this:

In [22]: a=b=[1,2,3]

In [23]: a
Out[23]: [1, 2, 3]

In [24]: b
Out[24]: [1, 2, 3]

but be careful that, a is b is True in this case, namely, a is just a reference of b

Answer 2

a,b,c = [[1,2,3] for _ in range(3)]

each points to a different object