py[NF] allow writing metadata on the commandline
py[NF] allow writing metadata on the commandline

esc/Psignifit-3.x,esc/Psignifit-3.x,esc/Psignifit-3.x,esc/Psignifit-3.x,esc/Psignifit-3.x,esc/Psignifit-3.x