[portland] Clue Stick Needed

[Dylan Reinhardt]

You're using the variable "i" in two different loops here.  That's probably
not going to do what you intend.

In any event, you're probably better off iterating through items in a
collection rather than iterating over the index of a size.

Ex:

for row in dataset:
   foo = row[3]

rather than

for i in range(len(dataset)):
    foo = dataset[i][3]


HTH,

Dylan

On 1/16/08, Rich Shepard <rshepard at appl-ecosys.com> wrote:
>
> On Wed, 16 Jan 2008, Rich Shepard wrote:
>
> >   What I need to do is go through the list of rows and isolate the
> items,
> > in sequential order, grouped by names. In C I would write 'for i=0,
> > i<row[16], i++', but what I thought would be the Python equivalent, 'for
> i
> > < row[16]', is not valid. If I try a nested while loop, it hangs on the
> > first item of the first variable.
>
>    I think that I'm making progress, but I'm still not there. Here's the
> relevant portion of the function:
>
>         proper = lambda t: (t[3],t[2], t[1], t[0], t[5])
>          sorted(self.appData.tsets, key=proper)
>         for i in range(len(self.appData.tsets)):
>                 row = self.appData.tsets[i]
>                 # select component, subcomponent, variable names
>                 curComp = row[3]
>                 curSub = row[2]
>                 curVar = row[1]
>                 tb.textOut(row[3])
>                 tb.x += 9
>                 if row[2] == '':
>                 tb.x += 36
>                 tb.textOut(curSub)
>                 tb.x += 9
>                 tb.textLine(curVar)
>                 for i in range(7):
>                 if i == row[16]:
>                         print curVar, row[0], row[5], row[4]
>
>    This throws no errors, but the resulting list is still not in order:
>
>         FloodControl Poor 1 Left Shoulder
>         FloodControl Average 2 Trapezoid
>         AnimalRefugia Poor 1 Left Shoulder
>         AnimalRefugia High 3 Right Shoulder
>         FloodControl High 3 Right Shoulder
>         AnimalRefugia Adequate 2 Trapezoid
>
>    The third FloodControl should follow the second one. Is my syntax error
> obvious?
>
> Rich
>
>
>
>
>
> --
> Richard B. Shepard, Ph.D.
> |  Integrity            Credibility
> Applied Ecosystem Services, Inc.        |            Innovation
> <http://www.appl-ecosys.com>     Voice: 503-667-4517      Fax:
> 503-667-8863
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