Message106601
Begin by removing the dest file is maybe not the safer approach :-) Here is a new try: begin by renaming the dest file to a new file.
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# use maybe a PRNG instead of a dummy counter or tempfile
def _create_old_filename(filename):
old = filename + '.old'
index = 2
while os.path.exists(old):
old = filename + '-%s.old' % index
index += 1
return old
if os.name in ('nt', 'ce'):
def atomic_rename(src, dst):
if os.path.exists(dst):
old = _create_old_filename(dst)
rename(dst, old)
rename(src, dst)
unlink(old)
else:
rename(src, dst)
else:
atomic_rename = os.rename
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What can we do if "rename(src, dst)" fails? |
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Date |
User |
Action |
Args |
2010-05-27 09:58:56 | vstinner | set | recipients:
+ vstinner, giampaolo.rodola, tarek |
2010-05-27 09:58:56 | vstinner | set | messageid: <1274954336.17.0.28560552817.issue8828@psf.upfronthosting.co.za> |
2010-05-27 09:58:53 | vstinner | link | issue8828 messages |
2010-05-27 09:58:53 | vstinner | create | |
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