think of a more convenient way to pass requested attributes

[sbellem]

For instance:

when requesting the attributes of a printer, if one wishes to only retrieve the name and state, the current way will be:

requested_attributes = 'printer-name,printer-state'
get_printer_attributes(uri, printer_uri=printer_uri, requested_attributes=requested_attributes)

one approach that would perhaps be more convenient would be the possibility to pass the requested attributes as a tuple, or list ...

requested_attributes = ('printer-name' , 'printer-state')
get_printer_attributes(uri, printer_uri=printer_uri, requested_attributes=requested_attributes)

we would then internally convert the list/tuple into a string ...

def get_printer_attributes(uri,
                           printer_uri=None,
                           requesting_user_name=colander.null,
                           requested_attributes=colander.null):
    if requested_attributes:
        requested_attributes = ','.join(requested_attributes)
    # ...    

thus allowing users of the function to simply pass a list/tuple for the attributes they wish to retrieve

this obviously requires the user to properly use the function, meaning that passing a string won't work, for instance ...

[ticosax]

Not sure it is a good idea.
Users of pyipptool should know IPP. Since the protocol mention that requested_attributes is a string containing comma separated tokens. I would prefer to stick with the protocol. For sake of consistency.

[ticosax]

I changed my mind. Let's go for it. Since we give arguments like True or False, that are pythonic, accepting a tuple, will be more consistent.

But the transformation of list to string must be done in Widgets