usage: rna_calc_inf.py [-h] [-t TARGET_FN] [-m NT]
                       [--ignore-files IGNORE_FILES] [-s SS] [--no-stacking]
                       [--debug] [--web] [-pr] [-sr] [--method METHOD]
                       [--target-selection TARGET_SELECTION]
                       [--model-selection MODEL_SELECTION]
                       [--renumber-residues] [--dont-remove-sel-files] [-f]
                       [-v] [-o OUT_FN]
                       files [files ...]
rna_calc_inf.py: error: the following arguments are required: files
DONE!