[Python-Dev] Tests failing on Windows with TESTFN (original) (raw)

Brett Cannon brett at python.org
Sat Jul 28 20:40:11 EDT 2018

On Sat, Jul 28, 2018, 15:13 eryk sun, <eryksun at gmail.com> wrote:

On Sat, Jul 28, 2018 at 9:17 PM, Jeremy Kloth <jeremy.kloth at gmail.com> wrote: > > PLEASE, don't use tempfile to create files/directories in tests. It > is unfriendly to (Windows) buildbots. The current approach of > directory-per-process ensures no test turds are left behind, whereas > the tempfile solution slowly fills up my buildbot. Windows doesn't > natively clean out the temp directory.

FYI, Windows 10 storage sense (under system->storage) can be configured to delete temporary files on a schedule. Of course that doesn't help with older systems.

If Windows doesn't clean up its temp directory on a regular basis then that doesn't suggest to me not to use tempfile, but instead that the use of tempfile still needs to clean up after itself. And if there is a lacking feature in tempfile then we should add it instead of a avoiding the module.

-Brett

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