Hi Larry, On 10/28/2015 10:25 AM, Larry Martell wrote: > I'm trying to do a list comprehension with an if and that requires an > else, but in the else case I do not want anything added to the list. > > For example, if I do this: > > white_list = [l.control_hub.serial_number if l.wblist == > wblist_enum['WHITE'] else None for l in wblist] > > I end up with None in my list for the else cases. Is there a way I can > do this so for the else cases nothing is added to the list?
You're not really using the if clause of the list comprehension here,
you're just using a ternary if-else in the result expression. List
comprehension if clauses go at the end, and don't require an else:
[l.foo for l in wblist if l.bar == "baz"]
Carl
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