module .__ init __()在Python中最多需要2个参数错误

Question

我有3个文件,factory_imagenet.py,imdb.py和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

它也有

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.

当我运行另一个与这些文件交互的脚本时,我收到此错误:

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？

Answer 1

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

这意味着您尝试从模块继承,而不是从类继承.实际上,datasets.imdb是一个模块; datasets.imdb.imdb是你的班级.

您需要更改代码,使其看起来像这样:

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