[Zope] Newbie - passing a list to an External Method

[Dylan Reinhardt]

On Wed, 2003-04-23 at 08:30, Ashley Lloyd wrote:
> If I return lines_check(lines), then it just sends back:
> 
> lines is type: lines has value:

Nothing??  Uh.... that's pretty weird.

> 
> Yet if I replace that - in exactly the same place, with return lines, then 
> it returns the expected value of lines. 

Even weirder.

So let's grasp at the next straw, shall we?

Doing a quick grep over sping, it would appear that the stringformat
module (which you import) also uses a variable called lines.  It *looks*
like it defines & used it locally, but I didn't do any real analysis.  

Let's just work on the assumption that it's more than a coincidence that
*your* lines variable gets busted at some point after you make use of a
module that *also* has a lines variable.


Give this a try:

-----------------------

# lines changed to my_lines

def run(self)
  REQUEST = self.REQUEST
  fileID = REQUEST.fileId
  my_lines = REQUEST.lines[:] # make a copy, for grins

  import sping.stringformat
  from sping.PDF import PDFCanvas
  from sping.PS import PSCanvas
  filename="c:/zopepdf/"+fileID
  canvas = PDFCanvas(size=(350,200), name=filename)
  y = 20
  for line in my_lines:
      sping.stringformat.drawString(canvas, line, 10,y)
      y += 20
  canvas.flush()
  canvas.save()
  return fileID

-----------------------

Getting warmer?

Dylan