python call method from external function of class

Question

I'm working on a function where an application is already created but I can't edit

class mainProject():
     def __init__(self, screen):
          module1 = importlib.import_module(extension)
          module1.openBox()


     def boxIsOpen(self):
          .......

I try to execute boxIsOpen() into my custom function openBox() in the extension module.

It is possible to do that? I try to reinitialized the class into the function but it is not the previous function. The "caller" keyword don't really works.

Thanks

Answer 1

Generally speaking, importing in the middle of code, let alone in a constructor isn't advisable.

import extension
class mainProject():
    def __init__(self, screen):
        extension.openBox()

    def boxIsOpen(self):
        ...

Should do the trick.

If you cannot touch the original otherwise, you should consider subclassing mainProject instead.