module.__init__() takes at most 2 arguments error in Python

Question

I have 3 files, factory_imagenet.py, imdb.py and imagenet.py

factory_imagenet.py has:

import datasets.imagenet

It

Answer 1

Here's another possible cause...

If you have an __init__.py file, make sure you import the super class before the derived ones.

Here's the WRONG way to do it:

from mymodule.InheritedA import InheritedA
from mymodule.InheritedB import InheritedB
from mymodule.Parent import Parent

The above will give an error:

TypeError: module.__init__() takes at most 2 arguments (3 given)

However this will work:

from mymodule.Parent import Parent
from mymodule.InheritedA import InheritedA
from mymodule.InheritedB import InheritedB

For example the file InheritedA.py might be:

from mymodule import Parent

class InheritedA(Agent):
    def __init__(self):
        pass

    def overridden_method(self):
        print('overridden!!')

Answer 2

When you call datasets.imdb.__init__(self, image_set)
Your imdb.__init__ method gets 3 arguments. Two you send and third is implicit self

Answer 3

module.__init__() takes at most 2 arguments (3 given)

This means that you are trying to inherit from a module, not from a class. In fact, datasets.imdb is a module; datasets.imdb.imdb is your class.

You need to change your code so that it looks like this:

class imagenet(datasets.imdb.imdb):
    def __init__(self, image_set, devkit_path=None):
        datasets.imdb.imdb.__init__(self, image_set)