[issue8604] Adding an atomic FS write API

[STINNER Victor]

STINNER Victor added the comment:

+       # Flush Python buffers to system buffers
+       fileobj.flush()
+
+       if hasattr(os, 'fsync'):
+           # Flush system buffers to disk
+           fd = fileobj.fileno()
+           os.fsync(fd)

A fsync=True paramater may be added if calling os.fsync() is an issue.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue8604>
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