Hi all, I am having a problem creating a tab separated file using Kedro's catalog. The file is the output of a node and I was therefore using the save_args parameters to ensure the formatting of the output file... I tried the following but yaml keeps complaining that it should be 1 character.

"TypeError: "delimiter" must be a 1-character string"
...
DataSetError: Failed while saving data to data set CSVDataSet(filepath=…, load_args={'sep': \t}, protocol=file, save_args={'sep': \t}).
"delimiter" must be a 1-character string

The entry in the catalog is the following:

list_xxxx:
  type: pandas.CSVDataSet
  filepath: data/02_intermediate/list_xxxx.txt
  save_args:
    sep: "\t" and "typing tab" and "small arrow"
    header:
    index:
  layer: primary

Is there a way to actually create a tab separated file as output to a node? I tried to find some answers both online and in this slack but no luck so far. Will keep searching. 🙂 Thanks a lot for your help!

Most likely the string is not escaped properly. How did you get this error? "\t" should be a string but in your error it's not.