If statement issue driving me nuts

[Dave Angel]

Anthony Smith <jackie.walkabout at gmail.com> Wrote in message:
> Hi
> 
> I have a small project and I have been unable to get the following statement to work. Any help would great.
> User inputs can either self_sale_head which is a $ value,if a $ value is not add a self.estimated_weight_hd is used to get the total weight, 
> the code below should return a estimated_weight_total which can be used for the total sale price. 
> All works when I add the estimated_weight_total manually. I am lost as why.
> 
> def calc_estimated_weight_total(self):
>     if self.sale_head <= 0:
>         amount = (self.number * self.estimated_weight_hd)
>         return amount
> 
> def save(self):
>     self.estimated_total_weight = self.calc_estimated_weight_total()
>     super(SaleNote, self).save()
> 

Please insert the missing words, and fix the punctuation,  and
 maybe we'll be able to decipher your question.  Your subject line
 implies you think there's a problem with the if statement; 
 perhaps you could describe what problem that is. You might even
 try to describe what the sale_head attribute is supposed to
 be.

Then post a useful fragment of code, and state what resulted,  and
 what you expected that was different.  If you got an exception, 
 paste the whole thing

Ideally post a runnable hunk of code. 

One problem with your first method is that you don't return an
 amount in the (missing) else clause.  So if the condition is
 false, the caller will see None instead of a number. If it
 happens to be called from the save method, you'll get an
 exception. 

-- 
DaveA