[Tutor] User input question

[Rob]

May I also add a suggestion about the use of input() in this case? When you
use input(), a user can provide input that you might expect, which could
cause problems.

An alternative solution is to use raw_input, and convert the input to the
desired integer:

>>> myInt = raw_input('try a number ')
try a number 4
>>> myInt
'4'

# notice that '4' is a string

>>> myInt = int(myInt)

# this converts myInt into an integer and stores it under the same name

>>> myInt
4

# myInt is now an integer!

Rob
http://uselesspython.com

> -----Original Message-----
> From: tutor-admin@python.org [mailto:tutor-admin@python.org]On Behalf Of
> David Turner
> Sent: Thursday, August 08, 2002 9:57 AM
> To: tutor@python.org
> Subject: RE: [Tutor] User input question
>
>
> OK guys, bear with me - this is my first EVER foray into Python,
> but I think
> I may have stumbled clumsily into a solution (of sorts)....
>
> Here goes....
>
> *****
>
> def timestab(n):
>     m = 1
>     if i < 13:
>                while m < 14:
>                        print "%d x %d = %d" % (m,n,m*n)
>                        m = m + 1
>     else:
>                print "Only positive numbers between 1 and 12 please!"
>
>
> i = input('Try a number ')
> print timestab(i)
>
> *****
>
>
> This seems to work OK (but I guess there will be far cleaner,
> neater ways to
> do it), and it doesn't get rid of the "None" at the bottom of the list...
>
> But anyway, since this was my first ever go with Python, I'm quite pleased
> with myself nonetheless!!  *LARGE GRIN*
>
> Cheers
>
> DT
>
> -----Original Message-----
> From: tutor-admin@python.org [mailto:tutor-admin@python.org]On Behalf Of
> shey crompton
> Sent: 08 August 2002 15:32
> To: tutor
> Subject: RE: [Tutor] User input question
>
>
> That's got rid of the error message, thanks.
> It now just squares the number that the user inputs, and also
> returns 'None'
> on the line below (confused?).
>
> I am thinking I need a range command to get it to do multiply within a
> range. I have just tried adding:
> 	For n in range(1,13):
> Between the 'def' line and the if statement with no result. Oh well, gives
> me something else to ponder on during an otherwise boring day at work. :-)
>
>
>  -----Original Message-----
> From: 	Kyle Babich [mailto:kb@mm.st]
> Sent:	08 August 2002 15:02
> To:	shey crompton; tutor
> Subject:	Re: [Tutor] User input question
>
> I'm still a newbie to python so I am taking my best guess in saying to
> un-indent the print that is causing the error.
>
> On Thu, 8 Aug 2002 14:15:32 +0100, "shey crompton" <shey@argonaut.com>
> said:
> > I have been trying to modify a script that prints out the times tables
> > to
> > one that asks the user to input which times table they would like
> > printed
> > out (between 1 and 13).
> > I have tried so many different ways of doing this without any success.
> > I am
> > sure it's a simple answer, but I am starting to get frustrated.
> > The script below is my latest attempt, and the error message I get is
> > below
> > it.
> > Hints, and tips greatly appreciated.
> >
> > Shey
> >
> >
> > def timestab(n):
> >     if i < 13:
> >         print "%d x %d = %d" % (i,n,i*n)
> >     else:
> >         print "Only positive numbers between 1 and 12 please!"
> >
> > i = input('Try a number ')
> >     print timestab(i)
> >
> >
> > The error message is:
> >
>
>
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