Comment by Balinares

Mainly I disliked the walrus operator because Python already has a keyword that means "capture the output of this clause into this variable": as.

E.g.,

    try:
        with open("file.txt") as f:
            do_something(f)
    except OSError as e:
        print(e)

And now:

    L = [abs(x) as x_abs for x in some_list if x_abs < 10]