Simple! Like this:

user = input("Type in a number or done: ")

try:
  num = int(user)
  # todo: add code for when the input is 'number'
except:
  if user != "done":
    print("You were supposed to type in a number or done.")
  # todo: add code for when the input is 'done'

Solution

you'll have to make two inputs for this, since done and integers are different.

ints = int(input("integer : "))
stri = str(input("string : "))

if ints == 2:
    print("Integer")
elif stri == "done":
    print("Done!")
else:
    print("Nothing.")

maybe, something like that.
That should work

Here are two ways of validating an integer:

1. Check for an error when converting:

   data = input()
   try:
     int(data)
   except Exception:
     #not an integer

2. Use a pattern-matching system, such as RegEx:

   import re
   data = input()
   if re.match("\d+", data):
     #an integer
   else:
     #not an integer

Idk