how can I delete something from a string?

Question

how can I delete "?" from "hello?world" ?

Answer 1

Strings are immutable, but not variables... you can simply reaffect a new string value to the same variable ( without "have to create a new string" supposing / meaning a new variable ^^ ):

str = "hello?world"
str = str.replace("?", " ")
print(str)

Answer 2

it worked!. thanks