nwbas2ecce
nwbas2ecce converts nwchem basis set files to the ECCE format
...In addition, many of the newer basis sets that come with nwchem aren't included, such as the def2- series.
nwbas2ecce is a python script that aims to automate as much as possible of the conversion process of a nwchem basis set file into the files necessary for ECCE to included it in the basis set tool.
The process isn't completely automatic, but I also believe that it shouldn't be to avoid stuff-ups -- however, the amount of manual editing is kept to a minimum.
Note that these script are run in the terminal. The screenshot is of the basis set tool in ECCE, not this piece of software.