[Tutor] interactive mode questions

[rick]

I'm working my way through Mr Lutz's "Learning Python", and I come to
this snippet (page 271):

while True:
    reply = input('Enter text:')
    if reply == 'stop': break
    print(reply.upper())

which works "as advertised" in an interactive session, but not in a
script.   Yes, I tried tossing the script to both versions of
interpreter, it doesn't work with either 2.6 or 3.1.

text given as input results in NameError: name 'text' is not defined.
numerical input results in AttributeError: 'int' object has no attribute
'upper'

either way, enclosing the input in quotes works.