bzr-grep software package provides virtual package provided by python-bzrlib, 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 bzr-grep
bzr-grep is installed in your system.
Make ensure the bzr-grep package were installed using the commands given below,
$ sudo dpkg-query -l | grep bzr-grep*
You will get with bzr-grep package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Virtual packages |
| Package | bzr-grep |
| Version | |
| Description | virtual package provided by python-bzrlib |
| Sub Section | Virtual |