Just to follow up on this, I had not specified the file type in the
function call and hence it did not encode it properly. It works fine now.
On Friday, April 19, 2013 3:51:29 PM UTC-5, Jim Gregory wrote:
>
> I'm working on a script to generate UPS shipping labels and save them on
> our server. The shipping labels are passed as binary data in an XML file
> from UPS. I am using the ClassicUPS library to parse the XML file and save
> the data.
>
> I wrote a simple script to test the library, and it works OK when I run it
> on the command line. However, when I include the function to save the file
> in a controller, the saved files are corrupted. If I use Imagemagick to
> read the file, it returns the error 'improper image header'. The function
> in the library that saves the data is:
>
> def save_label(self, fd):
> raw_epl =
> self.accept_result.dict_response['ShipmentAcceptResponse']['ShipmentResults']['PackageResults']['LabelImage']['GraphicImage']
> binary = a2b_base64(raw_epl)
> fd.write(binary)
>
> I call the function using:
> shipment.save_label(open('label.gif','wb'))
>
> where shipment is a shipping label object produced by the library.
>
> Does web2py do something that would corrupt the header?
>
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