[Zope] returning external data

[a.wacknitz@francotyp.com]

Hi all,

I have the problem to return files that are held in a version management
system through Zope.
My momentary solution is to check out a requested file into a temp directory
returning the (local) file name to which the calling request is redirected.
LocalFS is doing the rest of the job (the basepath is mapped to the temp
directory).
I have a problem with this solution: I don't know when it is safe to delete
the temporary files.
I wonder if it is possible to check out files to stdout and then returning
the byte stream.
I have no clue how this could by done in Python.
I also guess that I have to set the content type of the response
appropriately and maybe the file name. But I have no idea how to do that
either.
So, any help and hints are welcome.

TIA,
Andreas
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