[Pyparsing] CSVs with trailing comma

[Nathan H. <rat...@go...>]

Hi,

If I have a comma-separated list
        a,b,        # notice the trailing comma
     how can I specify a grammar to ignore the trailing comma.....
      foo = delimitedList( Word(alphanums, delim=",")

        The only I could think off was foo + Optional(",").suppress(),
which unfortunately doesnt work. Is there a way to this in pyparsing?

Many Thanks in advance,

Nathan