CODEWITHSUNDEEP
pythonpython-3.6
Alejandrodbn
Alejandrodbn

Reputation: 31

Function to call functions within a class

I have an issue, I'd like to have a function that calls or executes all functions inside a class.

class example:
    def foo(self):
        print("hi")
    def bar(self):
        print("hello")
    def all(self):
        self.foo()
        self.bar()

Is there any better way to do this? Since my class has around 20 functions and I want just one function to call all of them. Thanks

Upvotes: 1

Views: 461

Answers (3)

cardamom
cardamom

Reputation: 7441

I put this together and tested it and it seems to work and does not need any libraries and follows your original intent:

class example:
    def __init__(self):
        n = self.__class__.__name__
        self.method_list = [func for func in dir(eval(n)) \
                            if callable(getattr(eval(n), func)) \
                            and func[0]!='_' \
                            and func!='run_all']
    def foo(self):
        print("hi")
    def bar(self):
        print("hello")
    def run_all(self):
        for m in self.method_list:
            runstring = 'self.' + m + '()'
            eval(runstring)

Using it:

>> a = example()
>> a.run_all()
hello
hi

all is a Python command so I renamed your method to run_all.

func!='run_all' was necessary so you don't get a nasty recursion situation happening.

This lets you list the methods, I restricted it just so that no private methods get listed.

self.__class__.__name__ gets the name of your class

Upvotes: 0

Serge
Serge

Reputation: 3775

See How do I get list of methods in a Python class? to how enlist method with inspect or dir

While all are ugly, inspection is the prefered methods. You can invoke all the methods of an object via inspect

import inspect

class A:
    def h(self):
        print ('hellow')

    def all(self):


        for name, f in inspect.getmembers(self, predicate=inspect.ismethod):

            if name != 'all' and not name.startswith('_'):
               f()


a = A()
a.all()

If prefer dir you can try - catch getattr(self, attr)()

for attr in dir(self):
   try: 
      getattr(self, attr)()
   except Exception:
      pass

Upvotes: 1

SimTae
SimTae

Reputation: 152

Although I am not sure if that's the best way to do it, i suggest the following

class AClass():

    def my_method_1(self):
        print('inside method 1')

    def my_method_2(self):
        print('inside method 2')

def run_my_methods():
    executor = AClass()
    all_methods = dir(executor)
    #separate out the special functions like '__call__', ...
    my_methods = [method for method in all_methods if not '__' in method]  
    for method in my_methods:
        eval('executor.%s()'%method)

run_my_methods()

Output is

inside method 1 
inside method 2

Upvotes: 0

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