Benjamin Peterson <benja...@python.org> added the comment:
2011/12/8 Giampaolo Rodola' <rep...@bugs.python.org>:
>
> Giampaolo Rodola' <g.rod...@gmail.com> added the comment:
>
> This is not possible for two reasons:
>
> - on most POSIX systems, sendfile() works with mmap-like ("regular") files
> only, while HTTPConnection.send() accepts any file-like object as long as it
> provides a read() method
>
> - after read()ing a chunk of data from the file and before send()ing it over
> the socket, the data can be subject to an intermediate conversion
> (datablock.encode("iso-8859-1")):
> http://hg.python.org/cpython/file/87c6be1e393a/Lib/http/client.py#l839
> ...whereas sendfile() can only be used to send a binary file "as-is"
I presume you could check for a binary mode, though? Also, you can
catch EINVAl on invalid fds.
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<http://bugs.python.org/issue13559>
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