I'm not sure whether you've gotten an anwser (my mail feeds are
working at cross-purposes right now), but:
On Feb 21, 2007, at 10:42 AM, Timothy Clemans wrote:
>
> I'm trying to pass in an expression to my class Table and use i in the
> for loop for the x variable. How can I do that?
>
> class Table:
> def __init__(self,range_start,range_end,step,expression):
> self.range = range(range_start,range_end+1,step)
> self.expression = expression
> def __repr__(self):
> return 'Table of values of %s for %s' %
> (str(self.expression),str(self.range))
> def __str__(self):
> string = 'x | y\n\n------------\n\n'
> for x in self.range:
> string += '%5d|%6d\n\n' % (x,self.expression)
> return string
> table1 = Table(0,10,1,2*x+3)
I believe that you should treat the 'expression' as a function, in
that the string you are building up should be done thusly:
string += '%5d|%6d\n\n' % (x,self.expression(x))
Hope that works for you.
I got a complaint when I tried your example, so I'm not sure how you
got this output:
> print table1
>
> x | y
> ------------
> 0| 21
[snip]
Justin
--
Justin C. Walker, Curmudgeon at Large
Institute for the Absorption of Federal Funds
-----------
My wife 'n kids 'n dogs are gone,
I can't get Jesus on the phone,
But Ol' Milwaukee's Best is my best friend.
-----------
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