Docs were not fully transfered from bob.extension
When trying to explain clapper to a colleague, I realized one whole section of docs were not transfered https://www.idiap.ch/software/bob/docs/bob/bob.extension/master/framework.html#unified-command-line-mechanism I realize it had the name bob in it but it was quite important about explaining how the python config stuff works. I suggest rewriting that section in clapper instead.