[webology]

Hi, I'm a PSF Director and the PSF's Treasure as of this year. For transparency, our tax returns as of 2018 (and soon 2019) are up on https://www.python.org/psf/records/

You are right that this donation does not show up in our tax filings because they provide it to any OSS project.

[autarch]

Also, it's not income that you would put in your 990s. Similarly, the donor cannot deduct the expense of the donation.

[webology]

Correct on both points. (I do consider it a potential liability though.)