Python 如何按名称动态调用对象上的函数？
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How to invoke a function on an object dynamically by name?
提问by Roy Tang
In Python, say I have a string that contains the name of a class function that I know a particular object will have, how can I invoke it?
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，我该如何调用它？
That is:
那是：
obj = MyClass() # this class has a method doStuff()
func = "doStuff"
# how to call obj.doStuff() using the func variable?
采纳答案by Adam Vandenberg
Use "getattr": http://docs.python.org/library/functions.html?highlight=getattr#getattr
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"
