Where does python tempfile writes its files?

Question

In python you can create a tempfile as follows:

tempfile.TemporaryFile()

And then you can write to it. Where is the file written in a GNU/L

Answer 1

Looking at .name on a file handle is indeed one way to see where the file exists. In the case of TemporaryFile (on *NIX systems), you'll see , indicating an open file handle, but no corresponding directory entry. You'll need to use NamedTemporaryFile if you'd like to preserve the link to the underlying file.

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If you wish to control where temporary files go, look at the dir parameter:

TemporaryFile uses mkstemp, which allows setting the directory with the dir parameter:

If dir is specified, the file will be created in that directory; otherwise, a default directory is used. The default directory is chosen from a platform-dependent list, but the user of the application can control the directory location by setting the TMPDIR, TEMP or TMP environment variables.