python - How to write a Lambda with a for loop in it -

i trying make empty list same length number of letters in string:

string = "string" list = [] #insert lambda here produces following: # ==> list = [none, none, none, none, none, none]

the lambda should equivalent of code:

for in range(len(string)):      list.append(none)

i have tried following lambda:

lambda x: in range(len(string)): list.append(none)

however keeps replying syntax error , highlights word for.

what wrong lambda?

why not multiplying?

>>> lst = [none]*5 >>> lst [none, none, none, none, none] >>> lst[1] = 4 >>> lst [none, 4, none, none, none]

why not list comprehension?

>>> lst = [none x in range(5)] >>> lst [none, none, none, none, none] >>> lst[3] = 9 >>> lst [none, none, none, 9, none]

but… lambda:

>>> k=lambda x: [none]*x >>> lst = k(5) >>> lst [none, none, none, none, none] >>> lst[4]=8 >>> lst [none, none, none, none, 8]

Ben