I was trying to generate all prime numbers in range x to y. I tried simple example first: `range(10,11)`

which means to check if 10 is a prime number:

Here is my code:

prime_list = [x for x in range(10, 11) for y in range(2,x) if x % x == 0 and x % 1 == 0 and x % y != 0]

I know that the thing is missing the option to tell the expression that `x%y != 0`

should be checked for all y in `range (2,x)`

and return true if and only if all have met this condition.

How do we do that?

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## Answer

Use `all`

to check all elements (from 2 upto x-1) met conditions:

>>> [x for x in range(2, 20) if all(x % y != 0 for y in range(2, x))] [2, 3, 5, 7, 11, 13, 17, 19]

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