[Zope] Zope products and uploading files

[Stephen Rudd]

Dear all

At the moment I am creating a small zope product that is the web front end
to a java pipeline. I have a form where I can upload a file and I can
successfully place it anywhere within the Zope database by using

context.manage_addFile(name,file,title)

The file that is uploaded does not really want to be in zope - it should be
somewhere on the local filesystem - I have tried to read the file contents
back to the filesystem - but the product dies with a

Attribute Error :: __call__

Or

POSKeyError 000000000267f or something like it.

I could use Java to extract the contents of the URL but this seems quite
silly.

I know that I am doing it the hard way - could someone kindly suggest to me
an elegant way to write the File object directly to the local disk? Any help
would be very gratefully received.

Thanks

Stephen