That's just printing Tokens: 1 Tokens: 2 ... Tokens: 6000 etc... Can you recommend any tutorials for me? ----- Original Message ----- From: "Eric Brunson" <[EMAIL PROTECTED]> To: "Darren Williams" <[EMAIL PROTECTED]> Cc: <tutor@python.org> Sent: Monday, July 16, 2007 2:48 PM Subject: Re: [Tutor] CGI Calculator
> Darren Williams wrote: >> Now another problem - the script is just printing the word 'Tokens' >> over and over again, it's supposed to work like this (JavaScript >> version made by me) - http://nazkyn.brinkster.net/1.8.html >> >> Thanks in advance for any help :) > > It's doing exactly what you've told it to do: > > while usedPockets > totalJunkies - labSpace * 17: > Tokens = Tokens + 1 > usedPockets = (usedPockets - totalJunkies + labSpace) * 17 > totalJunkies = totalJunkies + 1 > print "Tokens" > > The print statement is inside the while loop and you've quoted the work > "Tokens" so it's printing the string rather than the variable. > > How about grabbing a short tutorial on Python and reading through it to > better understand the differences between Python and Javascript. If > you're an experienced JS programmer it shouldn't take very long. > > This is probably closer is what I infer you're looking for: > > while usedPockets > totalJunkies - labSpace * 17: > Tokens = Tokens + 1 > usedPockets = (usedPockets - totalJunkies + labSpace) * 17 > totalJunkies = totalJunkies + 1 > print "Tokens: %s" % Tokens > > e. > >> >> ----- Original Message ----- From: "Eric Brunson" <[EMAIL PROTECTED]> >> To: "Darren Williams" <[EMAIL PROTECTED]> >> Cc: <tutor@python.org> >> Sent: Monday, July 16, 2007 2:01 PM >> Subject: Re: [Tutor] CGI Calculator >> >> >>> Darren Williams wrote: >>>> Ok, now i've modified my script but am getting another error, i've >>>> commented a few useless (hopefully) lines out - >>>> >>>> #!/usr/bin/env python >>>> >>>> import cgitb; cgitb.enable() >>>> import cgi >>>> >>>> >>> [snip] >>>> 17 while usedPockets > totalJunkies - labSpace * 17: >>>> >>>> 18 Tokens = Tokens + 1 >>>> >>>> 19 usedPockets = (usedPockets - totalJunkies + >>>> labSpace) * 17 >>>> >>>> usedPockets = '192000', totalJunkies = '200', labSpace = '0' >>>> >>>> TypeError: unsupported operand type(s) for -: 'str' and 'str' >>>> args = ("unsupported operand type(s) for -: 'str' and 'str'",) >>>> >>> >>> What does "dog" - "cat" mean? Similarly, what does "100" - "12" >>> mean? It's not the same in Python as 100 - 12, because those are >>> numbers, "100" and "12" are strings which happen to represent numbers. >>> >>> You need to coerce those strings into integers, maybe like this: >>> >>> usedPockets = int(form["usedPockets"].value) >>> >>> When you do that, you'll probably need to catch any exception that >>> could occur if the string can't be converted. >>> >>>> >>>> >>>> It's confused me - it says I can't subtract a string from a string >>>> but then gives the value's of the variables (that I randomly entered >>>> into the form) at the bottom - usedPockets = '192000', totalJunkies >>>> = '200', labSpace = '0' >>>> >>> >>> >> > > _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
