brotli software package provides lossless compression algorithm and format (command line utility), you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install brotli
brotli is installed in your system.
Make ensure the brotli package were installed using the commands given below,
$ sudo dpkg-query -l | grep brotli *
You will get with brotli package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Python |
| Package | brotli |
| Version | 0.5.2+dfsg-1 |
| Description | lossless compression algorithm and format (command line utility) |
| Sub Section | Python |