module .__ init __（）在Python中最多需要2个参数错误 [英] module.__init__() takes at most 2 arguments error in Python

问题描述

我有3个文件，factory_imagenet.py，imdb.py和imagenet.py

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

factory_imagenet.py有：

import datasets.imagenet

它还有一个函数调用

datasets.imagenet.imagenet(split,devkit_path))
...

imdb.py有：

class imdb(object):
def __init__(self, name):
    self._name = name
    ...

imagenet.py有：

import datasets
import datasets.imagenet
import datasets.imdb

它还有

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

所有三个文件都在数据集文件夹中。

All three files are in the datasets folder.

当我我运行另一个与这些文件交互的脚本，我收到此错误：

When I am running another script that interacts with these files, I get this error:

Traceback (most recent call last):
  File "./tools/train_faster_rcnn_alt_opt.py", line 19, in <module>
    from datasets.factory_imagenet import get_imdb
  File "/mnt/data2/abhishek/py-faster-rcnn/tools/../lib/datasets/factory_imagenet.py", line 12, in <module>
    import datasets.imagenet
  File "/mnt/data2/abhishek/py-faster-rcnn/tools/../lib/datasets/imagenet.py", line 21, in <module>
    class imagenet(datasets.imdb):
TypeError: Error when calling the metaclass bases
module.__init__() takes at most 2 arguments (3 given)

这里有什么问题，如何解决这种继承问题的直观解释是什么？

What is the problem here and what is the intuitive explanation to how to solve such inheritance problems?

推荐答案

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

这意味着你试图继承来自一个模块，而不是一个类。实际上， datasets.imdb 是一个模块; datasets.imdb.imdb 是您的班级。

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.

您需要更改代码，使其如下所示：

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)

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