Python indentation mystery

Question

Why am I getting the following error? The last print statement should not be a part of the while loop.

>>> while n>= 0:
.         


        

Answer 1

I guess that the error shows up because python shell don't support that. It want you to do one thing in a time.! I do the same things in my python 2.7 shell and it said:

File "", line 4
    print 'to all'
                 ^
IndentationError: unindent does not match any outer indentation level

when I do the same thing in my python 3.4 shell, it said: unexpected indent.