Why I get "None"?

Question

Why I code:
nums=[1,2,3,4]
print(nums.reverse())
the answer is"None"?
Isn't it supposed to be"[4,3,2,1]"?

Answer 1

it isn't. nums.reverse() returns None. It just reverses array.
try:
nums.reverse()
print(nums)
or:
print(nums[::-1])

Answer 2

print(nums[::-1])

Answer 3

so...I can regard "nums.reverse()"as a process.It shows"None" because I cannot print a process instead of the main object"nums".In order to print"nums",I need to reverse "nums"first and then print it.
Do I get it wrong?

Answer 4

reverse (num)

Answer 5

@aruluth is correct. You are printing the result of the reverse function call. Which is 'None' because it was successful.