Python variable variables without eval?

问题

Is there is a way to access variables using a variable string in python? For instance, I would like a neater way than using eval for the following:

def toggleListButtons (self):
    buttons = ["flip", "remove", "removeAll", "delete", "deleteAll", "loadDirectory"]
    for button in buttons:
        eval("self." + button + "Button.setEnabled(!self." + button + "Button.isEnabled())")

回答1:

What you're looking for is the getattr() built-in function. There is also hasattr() and setattr().

button = getattr(self, 'flipButton')
button.setEnabled(True)

来源：https://stackoverflow.com/questions/12111358/python-variable-variables-without-eval