How to call a function repeatedly until a condition is met and collect the results in a list, in a single statement without a while loop

I am making a programme and I have this line of code:

self.languages = [while ans != 'no': ans = input('Insert a language you know: ')]

I hope to achieve this interaction:

Insert a language you know: English
Insert a language you know: French
Insert a language you know: no

and then self.languages will be ['English', 'French'].

But when I execute it this is the output:

self.languages = [while ans != 'no': ans = input('Insert a language you know: ')]
                 ^^^^^
SyntaxError: invalid syntax

I also tried this:

self.languages = while ans != 'no': ans = input('Insert a language you know: ')

but it gives the same error.

What can I do?

>Solution :

There is no syntax similar to list comprehensions that uses while instead of for.

However, you can use iter in its two-argument form:

• The first argument is a callable f that is executed repeatedly.

• The second argument is a sentinel value that stops the iteration if f returns it.

• The results of the iteration (the return values of f before the sentinel) are collected using the list() constructor.

list(iter(lambda: input('Insert a language you know: '), 'no'))