Re: [Zope] want to use external script to read a text-file and image in database and modify REQUEST
Allen Huang wrote:
Hi
I want to use external methods to read a text file and image in database
and modify the REQUEST
my code looks like this varible
---
def imageSetup(self, imageID, dataID, REQUEST):
import PIL.Image
from StringIO import StringIO
# Get the original image and data in memory.
image=getattr(self, imageID)
imageData=getattr(self, dataID)
imageFile=StringIO(str(image.data))
imageDataFile=StringIO(str(imageData.data))
# open image and data file
im = PIL.Image.open(imageFile)
tfw = open(imageDataFile, r)
# assign data coordinate and image size to variables
imX,imY = im.size()
rX=float(tfw.readline())
tfw.readline()
tfw.readline()
rY=float(tfw.readline())
mnX=float(tfw.readline())
mnY=float(tfw.readline())
mxX=mnX+imX*rX
mxY=mnY+imY*rY
# assign variables to REQUEST
REQUEST.set('resX', rX)
REQUEST.set('resY', rY)
REQUEST.set('minX', mnX)
REQUEST.set('minY', mnY)
REQUEST.set('maxX', mxX)
REQUEST.set('maxY', mxY)
REQUEST.set('pixelX', imX)
REQUEST.set('pixelY', imY)
--
but all I get is this
zope coercing to Unicode: need string or buffer, instance found
and the REQUEST variable is unchanged
I'm still new to external scripting so I don't know what the problem is
(and I think there is a lot of it here)
so, could someone help me out??
It's likely that you're passing an object to a method that wants a
string (probably an id). Without a traceback, it's impossible to say more.
Are you sure that the things you're passing in as ids are really ids and
not the objects themselves?
--jcc
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[Zope] want to use external script to read a text-file and image in database and modify REQUEST
HiI want to use external methods to read a text file and imagein database and modify the REQUEST my code looks like this varible --- def imageSetup(self, imageID, dataID, REQUEST): import PIL.Image from StringIO import StringIO # Get the original image and data in memory. image=getattr(self, imageID) imageData=getattr(self, dataID) imageFile=StringIO(str(image.data)) imageDataFile=StringIO(str(imageData.data)) # open image and data file im = PIL.Image.open(imageFile) tfw = open(imageDataFile, "r") # assign data coordinate and image size to
variables imX,imY = im.size() rX=float(tfw.readline()) tfw.readline() tfw.readline() rY=float(tfw.readline()) mnX=float(tfw.readline()) mnY=float(tfw.readline()) mxX=mnX+imX*rX mxY=mnY+imY*rY # assign variables to REQUEST REQUEST.set('resX', rX) REQUEST.set('resY', rY) REQUEST.set('minX', mnX) REQUEST.set('minY', mnY) REQUEST.set('maxX', mxX) REQUEST.set('maxY', mxY) REQUEST.set('pixelX', imX) REQUEST.set('pixelY', imY) -- but all I get is thiszope coercing to Unic
ode:
need string or buffer, instance foundand the REQUEST variable is unchangedI'm still new to external scripting so I don't know what the problem is (and I think there is a lot of it here)so, could someone help me out??
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