geiser software package provides enhanced Scheme interaction mode for Emacs, you can install in your Debian 7 (Wheezy) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install geiser
geiser is installed in your system.
Make ensure the geiser package were installed using the commands given below,
$ sudo dpkg-query -l | grep geiser *
You will get with geiser package name, version, architecture and description in a table
| Distro | Debian 7 wheezy |
| Section | Lisp |
| Package | geiser |
| Version | 0.1.4-2 |
| Description | enhanced Scheme interaction mode for Emacs |
| Sub Section | Lisp |