Question

Normal list comprehensions occur this way:

new_list = [f(x) for x in l]

What is the most succinct and readable way to create new list in Python similar to this:

new_list = [f(x) while condition is True]

Answer 1

Keep it simple:

new_list = []
while condition:
    new_list.append(f(x))

There is no benefit to forcing something into a single expression when it is more clearly written as separate statements.