Pythonのクラスにexecで評価したfunctionオブジェクトを生やす

class_get_executed_function.py

environment = {}

input1 = '''                                                                                                                                                                             
def say(self):                                                                                                                                                                           
    print("hello")                                                                                                                                                                       
    print(self.NAME)                                                                                                                                                                     
    self.hoo("say! hoo!")                                                                                                                                                                
'''

func_string = '''                                                                                                                                                                        
%s                                                                                                                                                                                       
environment[say.__name__] = say                                                                                                                                                          
''' % input1

exec(func_string)

class X(object):
    NAME = 'Im X'

    def hoo(self, x):
        print(x)

for k, v in environment.items():
    setattr(X, k, v)

if __name__ == '__main__':
    x = X()
    x.say()