[Tutor] Can tempfile.NamedTemporaryFile(delete=False) be used to create *permanent* uniquely named files?
__peter__ at web.de
Tue Oct 23 05:24:28 EDT 2018
Cameron Simpson wrote:
> On 21Oct2018 10:55, Peter Otten <__peter__ at web.de> wrote:
>>boB Stepp wrote:
>>> So I am now wondering if using
>>> tempfile.NamedTemporaryFile(delete=False) would solve this problem
>>> nicely? As I am not very familiar with this library, are there any
>>> unforeseen issues I should be made aware of? Would this work equally
>>> well on all operating systems?
>>I think this is cool thinking outside of the box.
>>I would not have "dared" this, but now you suggest it I cannot see
>>anything wrong with your approach.
> The doco for mktemp (do not use! use mkstemp or the NamedTemporaryFile
> classes instead!) explicitly mentions using delete=False.
Well, "permanent temporary file" does sound odd.
By the way, NamedTemporaryFile returns a proxy instead of the file itself.
In some rare cases that could be a problem.
Would mktemp() really be dangerous if you used it like this,
for _retry in range(3):
filename = mktemp("game_", ".json", dir=directory)
return open(filename, "x")
with the "x" mode?
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