Python 3.6.6 (tags/v3.6.6:4cf1f54eb7, Jul 6 2018, 15:35:19) [GCC 4.8.4] on linux Type "help", "copyright", "credits" or "license" for more information. >>> conditionA = True >>> attr = "foo" if conditionA else "bar" >>> print(attr) foo >>> conditionA = False >>> attr = "foo" if conditionA else "bar" >>> print(attr) bar >>>