STINNER Victor <victor.stin...@haypocalc.com> added the comment:
> I'm not sure about the best module to host this, though: os.path ?
Some OS don't provide atomic rename. If we only define a function when it is
atomic (as we do in the posix module, only expose functions available on the
OS), programs will have to write two versions of their function. I prefer to
write a "best-effort" function, and so I consider that shutil is the best place
for such function.
If this function requires a function specific to the OS, the specific function
can be added to posix (or another module).
Example:
with shutil.write_file(filename) as f:
f.write("I hope it will be atomic!")
We need an "atomic rename file" function to implement "atomic write file": see
#8828.
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<http://bugs.python.org/issue8604>
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