After installing, the package can be executed and passed an input file:

python -m bdld input

The input file uses the syntax of the configparser package. Documentation of the structure and options can be found under Input file.

If you didn’t install the code, you can use the bdld_run executable in the bin subdirectory

bdld_run input

which behaves exactly the same way. If you installed the code globally, this executable should now also be in your $PATH.