I’ve been trying to redownload nfl_data_py on my Mac after hosing my python installation. The error I kept running into was that python-snappy wouldn’t download, which kicked nfl_data_py out of the installation process. I googled around a bit and found this stackoverflow
What worked for me on the Mac was using homebrew to install python-snappy and then using the following command to link the two together.
CPPFLAGS="-I/usr/local/include -L/usr/local/lib" pip install python-snappy