Why it returns the same list (not working) ?.... Crt me

Question

https://code.sololearn.com/c9U0Pc3WGD8Y/?ref=app

Answer 1

Filter works with Boolean. That means that your lambda function must compare values :
lambda x : x > 2

Maybe you're not using the right function. If you want to apply a changes for each element of the list, you should use 'map', not 'filter'.

Answer 2

As Théophile stated:

https://code.sololearn.com/cyLnsSkvWe5f/?ref=app

Answer 3

There's an easier way if you want to multiply every element of your list by 2(or by any number):

l=[1,2,3,4,5,6,7,8,9,10]
print ([i * 2 for i in l])

#outputs [2,4,6,8,10,12,14,16,18,20]