How do I convert the following for-loop containing an if/else into a list comprehension? results = [] for x in xs: results.append(f(x) if x is not None else '') It should yield '' if x is None, and otherwise f(x). I tried: [f(x) for x in xs if x is not None else ''] but it gives a SyntaxError. What is the correct syntax? See Does Python have a ternary conditional operator? for info on ... if ... else .... See List comprehension with condition for omitting values based on a condition: [... for x in xs if x cond]. See `elif` in list comprehension conditionals for elif. Continue reading...
