使用字符串变量中的方法名称将方法传递给函数

Question

I have a class with a constructor, two other methods, and a member list with the names of the two methods.

class Foo():
    def __init__(self):
        self.methods = ["self.foo", "self.bar"]
    def foo(self):
        print("foo")
        return 0
    def bar(self):
        print("bar")
        return 0

I have a function that takes a function as an argument, like this.

myFunction(func)

The function has global scope and would be used like this.

myFunction(self.foo)

I want to iterate through the items in the self.methods list and make a call to the function for each method name, but, as expected, a string is passed rather than the method itself. How do I pass the method like the above example, so like self.foo not "self.foo" ?

Answer 1

From what I understand you can try this.

class Foo():
    def __init__(self):
        self.method=['foo','bar']
    def foo(self):
        print('foo')
    def bar(self):
        print('bar')
    def run_all(self):
        for m in self.method:
            getattr(self,m)()

---

a=Foo()
a.run_all() # iterating through self.method and executing them
# foo
# bar

Answer 2

You want somwthing like this?

class Foo():
    def __init__(self):
        self.methods = [self.foo(), self.bar()]
    def foo(self):
        print("foo")
        return 0
    def bar(self):
        print("bar")
        return 0


foo_obj = Foo()

Answer 3

What about:

class Foo():
    def __init__(self):
        self.methods = self.foo, self.bar

    def run_methods(self):
        for method in self.methods:
            print('Running method {}'.format(method.__name__))
            method()

    def foo(self):
        print("foo")
        return 0

    def bar(self):
        print("bar")
        return 0

So, you can run your methods by calling run_methods . If you want to access their names as well, you can always do that via their respective __name__ methods, as above.

f = Foo()
f.run_methods() 

# Output:
#
# Running method foo
# foo
# Running method bar
# bar

EDIT: As another person suggested, you should edit your question to describe in more detail what myFunction(fun) does. But inded, you should probably use a different approach than passing the actual names as strings.