A result smaller than 0 should be just invalid.
I'd like to work with "try" and "except" like this:
value=20
try:
value=value-23
except:
print 'value is smaller than 23'
Now it should run into the "except".
Dirk Hagemann
Larry Bates <[EMAIL PROTECTED]> wrote in message news:<[EMAIL PROTECTED]>...
> What exactly do you want to happen when result
> would be negative? I'll guess be zero:
>
> pseudocode:
>
> x=value
> x=max(x-something, 0)
>
> That way if it goes negative, it sticks to zero.
>
> Larry Bates
>
>
> Dirk Hagemann wrote:
> > Hi,
> >
> > Is there a datatype in python which allows no negative values? I
> > subtract several times something from a value and I don't want to chek
> > everytime if this value is still bigger or equal 0.
> >
> > Thanks for help!
> > Dirk Hagemann
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