A list comprehension is used to convert and/or filter elements of another iterable, in your case a range but this could also be another list. So you can think of it as taking one list, filtering/converting each element and producing a new list as a result.
So there's no need to append to any list as that's implicit in the comprehension.
For example, to produce a list of all squares in a range you could do:
[x*x for x in range(10)]
This would automatically "append" each square to the resulting list, there's no need to do that yourself.
Common Lisp. I really enjoy the interactive development experience and the language itself (and macros). I feel though that the ecosystem isn't very active and so existing libraries are often unmaintained which is a shame.
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"...You know, as a writer, if you took away my paper, I would write on my heart. If you take away my ink, I'd write on the wind. (Pauses) It wouldn't be an ideal way to work." - Garth Marenghi
mbsync to sync IMAP to my local machine, then mu4e in Emacs to manage everything