[issue6077] Unicode issue with tempfile on Windows

[Amaury Forgeot d'Arc]

Amaury Forgeot d'Arc <amauryfa at gmail.com> added the comment:

File descriptors wrapped by the new IO module should be opened in binary
mode.

The attached patch changes TemporaryFile and NamedTemporaryFile to
always call os.open() in binary mode; the mode is really used by the
io.open() function.

mkstemp() returns a raw file descriptor and was not changed.

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keywords: +needs review, patch
nosy: +amaury.forgeotdarc
Added file: http://bugs.python.org/file14092/tempfile.patch

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