If n2p2_prepare.sh (created by controller.write_n2p2_scripts) is run without an input.data file present, it can produce unhelpful and misleading errors, such as referring to input.nn being missing.
Adding a check that the file is present before attempting to prepare the data would allow a more helpful error to be generated.
If
n2p2_prepare.sh(created bycontroller.write_n2p2_scripts) is run without aninput.datafile present, it can produce unhelpful and misleading errors, such as referring toinput.nnbeing missing.Adding a check that the file is present before attempting to prepare the data would allow a more helpful error to be generated.