finds rdeps of a package (recursion is possible)
usage: rdepends.py [-h] [--recdepth RECDEPTH]
Recursively list all rdepends of a package.
positional arguments: The name of the package.
optional arguments:
-h, --help show this help message and exit
--recdepth RECDEPTH, -r RECDEPTH The recursion depth (listing rdepends of rdepends)