On Sun, Jul 29, 2018 at 12:35 PM, Steve Dower <steve.dower@python.org> wrote:
One additional thing that may help (if support.unlink doesn't already do it) is to rename the file before deleting it. Renames are always possible even with open handles, and then you can create a new file at the original name.
Renaming open files typically fails with a sharing violation (32). Most programs open files with read and write sharing but not delete sharing. This applies to Python, except temporary files (i.e. os.O_TEMPORARY) do share delete access. Renaming a file is effectively adding a new link and deleting the old link, so it requires opening the file with delete access. Also, renaming a directory that has open files in the tree fails with access denied (5).