raw input - Printing results in reverse order from raw_input in python -

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when using raw_input in loop, until character typed (say 'a'), how can print inputs before that, in reverse order, without storing inputs in data structure?

using string simple:

def foo():      x = raw_input("enter character: ")     string = ""     while not (str(x) == "a"):         string = str(x) + "\n" + string         x = raw_input("enter character: ")     print string.strip()

but how same without string?

this not practical approach, since asked it:

def getchar():     char = raw_input("enter character: ")     if char != 'a':         getchar()         print char  getchar()

of course means i'm using "hidden" data structures, local namespace , call stack.


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