test_HDFStore uses hardcoded absolute filename which breaks parallel test sessions

[vnlitvinov]

System information

• OS Platform and Distribution (e.g., Linux Ubuntu 16.04): any Linux
• Modin version (modin.__version__): current master (2592849)
• Python version: any
• Code we can use to reproduce: create a read-only file /tmp/test_read_hdf.hdf5 and run test_io.py::test_HDFStore

Describe the problem

Pandas up to (including) 1.1.5 use some "funny" logic when opening a HDFStore - if opening in write mode fails it silently (well, it prints to stdout which itself is a strange decision for a library) opens the store in read-only mode.
So if the file exists and, for example, was created by another user, all other test sessions on that box would fail.

This was fixed in Pandas via pandas-dev/pandas#36859, but that isn't released yet.

Source code / logs

Current proposal: do not use hardcoded absolute path for the store.

cc @YarShev

[vnlitvinov]

Update: it should be enough to just run test session from one user to permanently (until that file is removed) break testing HDF for all others.