web at pobox.com
Mon Mar 12 19:09:42 CET 2007
I'm always disappointed when I find something that Python doesn't
handle in a platform independent way. It seems to me that file
locking is in that boat.
1. I don't see a way to atomically open a file for writing if and only
if it doesn't exist without resorting to os.open and specialized
platform O_XXX flags.
2. I don't see a way to atomically open a file for writing and obtain
a lock on the file.
3. I don't see a platform independent way to obtain a lock on a file.
You have to do something goofy like
if sys.platform == win32:
and then similar things to call the correct functions with the correct
Please let me know if I'm missing something since they seem like
normal file operations that I would hope Python would abstract away.
If not, are there any PEPs concerning this for Python3K?
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