Published: 2019-10-09.

Edit (2020-05-04): This blog post was written before it was easy to get download statistics via PePy: for Scanpy and for anndata.

Scanpy and anndata have been downloaded about 55k times from PyPI during the past 6 months (scanpy, anndata) (screenshots below). Also, they now have 15k total downloads on Bioconda (scanpy, anndata).