[Zope-dev] FileUpload and blob on Windows

[Christian Theune]

Hi,

Leonardo Rochael schrieb:
> I should've been clearer, I meant reading and writing at the same time from
> 2 different file handles. 
> 
> NamedTemporaryFile has the added complication of removing the file from
> under 'blob' when it's closed, so even if I don't try to open the blob after
> consuming the file, the file disappears after the request is gone, and the
> transaction subsequently fails when trying to rename the consumed file to
> it's final location.
> 
> I also tried win32file.CreateHardLink() but if a file is open by one
> hard-link, renaming the other hard-link fails, so we're stuck with copying
> files wholesale on Windows, or closing the FileUpload object and letting
> subsequent uses of it fail.

Hmm. The Python docs already mention this problem for Windows. To avoid 
copying, we'd have to adjust the publisher not to use a 
NamedTemporaryFile, but actually use a regular temporary file that gets 
deleted when the publisher decides to.

Christian

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