Dick wrote: > I was hoping to put some sort of explanation of failure in an > assert statement. But how to do it? > So I'd like to know what that 'expression' in the syntax can be, > and how to use it.
I think it would help if you separate the detection of duplicate colors from the assert statement. It all looks a bit convoluted now, and I'm missing the context in which this all happens. First detect the presence of duplicate colors in a True/False variable, then use that variable in an assert. Oh, and by the way, you don't have to convert a set to list to be able to take it's length. colors=["red","blue","green","blue","yellow","blue"] duplicatesfound = len(set(colors)) != len(colors) assert not duplicatesfound, "A color has been used more than once" Exercise left for the reader: Report which colors were used more than once. And do me a favor, post in plain text, not HTML. Greetings, -- "The ability of the OSS process to collect and harness the collective IQ of thousands of individuals across the Internet is simply amazing." - Vinod Vallopillil http://www.catb.org/~esr/halloween/halloween4.html _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
