def mkdtemp(suffix="", prefix=template, dir=None):
"""User-callable function to create and return a unique temporary
directory. The return value is the pathname of the directory.
Arguments are as for mkstemp, except that the 'text' argument is
not accepted.
The directory is readable, writable, and searchable only by the
creating user.
Caller is responsible for deleting the directory when done with it.
"""
if dir is None:
dir = gettempdir()
names = _get_candidate_names()
for seq in xrange(TMP_MAX):
name = names.next()
file = _os.path.join(dir, prefix + name + suffix)
try:
_os.mkdir(file, 0700)
return file
except OSError, e:
if e.errno == _errno.EEXIST:
continue # try again
if (_os.name == 'nt' and e.errno == _errno.EACCES and
_os.path.isdir(dir) and _os.access(dir, _os.W_OK)):
# On windows, when a directory with the chosen name already
# exists, EACCES error code is returned instead of EEXIST.
continue
raise
raise IOError, (_errno.EEXIST, "No usable temporary directory name found")
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