[Tutor] strategy in dealing with user input

Kent Johnson kent37 at tds.net
Sat Sep 29 19:06:33 CEST 2007

Robert Jackson wrote:
> I have a few lines of code as follows:
> CONFIGFILE = raw_input("Enter config location: ")
>     while CONFIGFILE == "":
>          CONFIGFILE = raw_input("You must enter configuration file location: ")
> Let's say the user hits enter past the initial raw_input request.  The user will then be in the while loop.  Any subsequent "enters" by the user will result in a brand new line that reads: "You must enter configuration file location: ".
> Is there a way to clear out the CURRENT line while in the *while* loop so that even if the user hits enter a few extra times, it'll stay in the SAME line that reads "You must enter a configuration file location: " (and not fill up the screen with the same text over and over)?

CONFIGFILE = raw_input("Enter config location: ")
prompt = "You must enter configuration file location: "
while CONFIGFILE == "":
     CONFIGFILE = raw_input(prompt)
     prompt = ""


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