[issue2768] os.fstat and other os.f* methods should use PyObject_AsFileDescriptor

[Neil Muller]

Neil Muller <drnlmuller+bugs at gmail.com> added the comment:

More fleshed out doc patch. Mention caveats about using file descriptors directly, add note to ftruncate similar to that for other dangerous methods.

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Added file: http://bugs.python.org/file16655/fileno_doc.diff

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