TypeError: It would appear that nargs is set to conflict with the composite type arity
There are a couple of ways you can fix this.
Do not use click.Tuple
Tuple is intended for a multiple valued argument of non-uniform type. Since you are using 6 strings, this can be done more simply with:
@click.option('--new_profile', '-n', nargs=6, type=str, ....Use click.Tuple with a default
As you discovered you can use a click.Tuple if you specify a default.
@click.option('--new_profile', '-n', default=[None] * 6, type=click.Tuple([str, str, str, str, str, str]), ....Then you can qualify that you did not get the default like:
if new_profile and None not in new_profile: # create a new profile ....