Help with removing spaces and tabs from a string

[msqpython]

Hello, this is actually a follow-up question on my code. So I actually forgot to put my code inside of a function at the start, so I added it in and its saying that its not giving the same output I had before.

string = input("Enter a string: \n")

 

def trim(string):

    newstring = ""

    pos = 0 

    length = len(string)

    

    while (pos < length

       ): 

       if (string[pos].isspace() != True

        ):

        newstring = newstring + string[

            pos] 

    pos += 1 

 

  

 

print(trim(""))