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