In Python 3.8 you will be able to use assignment expressions: [a := x*2 for x in (1, 2, 3)] See PEP 572 -- Assignment Expressions: https://www.python.org/

In Python 3.8 you will be able to use assignment expressions: [a := x*2 for x in (1, 2, 3)] See PEP 572 -- Assignment Expressions: https://www.python.org/dev/peps/pep-0572/ https://www.python.org/dev/peps/pep-0572/