Why my code doesn't work?

Question

What is the error?
https://code.sololearn.com/cTIEbJzWZgw9/?ref=app

Answer 1

[()] is a generator expression inside a list. Remove the inner ()

Answer 2

line 14 in your code:
print("Result - {}".format(len(res))
is missing a closing “)” at the end of the line. Do it like this:
print("Result - {}".format(len(res)))

Answer 3

You don't need the "str" function to convert your input to a string. The input is always a string by default. So text = input('enter your text here').

Answer 4

Thx