Python - 如何通过名称动态调用对象上的函数？

Question

在python中,假设我有一个字符串,其中包含我知道特定对象将具有的类函数的名称,如何调用它？

那是:

obj = MyClass() # this class has a method doStuff()
func = "doStuff"
# how to call obj.doStuff() using the func variable?

Answer 1

使用"getattr":http://docs.python.org/library/functions.html？highlight = getattr #getattr

obj = MyClass()
try:
    func = getattr(obj, "dostuff")
    func()
except AttributeError:
    print "dostuff not found"