[Tutor] user input help

[Jason Staudenmayer]

> -----Original Message-----
> From: Alex Hall [mailto:mehgcap at gmail.com] 
> Sent: Wednesday, January 05, 2011 3:23 PM
> To: Jason Staudenmayer
> Cc: tutor at python.org
> Subject: Re: [Tutor] user input help
> 
> 
> On 1/5/11, Jason Staudenmayer <jasons at adventureaquarium.com> wrote:
> > Hi all, I'm pretty new to programming in general and 
> figured I'd try out
> > python.
> > I'm working on a small program to add users to a sqlite db. 
> The problem I'm
> > having it dealing with the user input, I'd like to be able 
> to repeat the
> > function to get the input if the user doesn't accept it.
> >
> > here's the code I have now:
> >
> > def promptInput():
> > """ Get employee data from user running this program"""
> >
> >     lname = raw_input("Please enter employees last name\n")
> >     fname = raw_input("Please enter employees first name\n")
> >     email = raw_input("Please enter employee email address 
> (or press enter
> > to \
> > leave blank)\n")
> >     result = (lname, fname, email)
> >     return result
> >
> > def getEmplyInfo():
> >     # get the data from input
> >     result = promptInput()
> >     # print the data so the user can check and verify spelling
> >     print "Is the following info correct [y/n]\n%s, %s %s" 
> % (result[1], \
> >     result[0], result[2])
> >     check = raw_input()
> >     #see if the user needs to make corrections to the data 
> he entered
> >     if check == "y":
> >         print "this check is done so we can add user"
> >         print "%s, %s %s" % (result[1], result[0], result[2])
> >     else:
> >         check = ""
> >         promptInput()
> >
> > The if else loop is were I'm loosing it. If I select n it 
> will ask for the
> > input
> > again but only once. If on the second time around I enter n 
> to re-do it just
> > exits.
> This is because the function is done once it detects the y or n, so
> after you enter the n, one of those if/else statements has fired, and
> the function has nothing else to do. You will want a while loop,
> something like:
> 
> repeat=True
> while repeat:
>  answer=raw_input("Is the data okay?")
>  if answer=="y": repeat=False
>   else:
>    promptInput()
>    repeat=True
> 
> Anyway, something along those lines. Look in the manual for while
> loops. Basically, they are a way to repeat an action until a condition
> is met. You will also run across for loops, which are mostly used for
> repeating an event a set number of times. You can use them
> interchangeably, but they each have situations where one works better
> than the other, and you want a while loop here.
> >
> >
> >
> > Thanks
> >
> > Jason
> >
> >
> >
> > ..·><((((º>
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> >
> 
> 
> -- 
> Have a great day,
> Alex (msg sent from GMail website)
> mehgcap at gmail.com; http://www.facebook.com/mehgcap
> 

That works great!! I forgot about while loops. It's been a while since I've used then.

Thanks much

Jason