TypeError：调用元类基础模块时出错

Question

I'm getting the following error:

Traceback (most recent call last):
  File "/Users/user/repos/prodigy/Sweeper/envsweeper/lib/python2.7/site-packages/nose/loader.py", line 414, in loadTestsFromName
    addr.filename, addr.module)
  File "/Users/user/repos/dr/Sweeper/envsweeper/lib/python2.7/site-packages/nose/importer.py", line 47, in importFromPath
    return self.importFromDir(dir_path, fqname)
  File "/Users/user/repos/prodigy/Sweeper/envsweeper/lib/python2.7/site-packages/nose/importer.py", line 94, in importFromDir
    mod = load_module(part_fqname, fh, filename, desc)
  File "/Users/user/repos/dr/Sweeper/test.py", line 5, in <module>
    from SomethingSubclass import SomethingSubclass
      File "/Users/user/repos/dr/Something/SomethingSubclass.py", line 18, in <module>
    class SomethingSubclass(SomethingBaseclass):

TypeError: Error when calling the metaclass bases
    module.__init__() takes at most 2 arguments (3 given)

This is the code in the Base class:

import os
import sys
import inspect
from settings import picklePass, masterMap
from decimal import Decimal
CURRENTDIR = os.path.dirname(
    os.path.abspath(inspect.getfile(inspect.currentframe())))
parentdir = os.path.dirname(CURRENTDIR)
sys.path.insert(0, parentdir)
from libs.pickler.pickler import Pickler
import logging


class BaseClass(object):

    def __init__(self, address, fee, msg_body):
        self.address = address
        self.fee = (fee)
        self.msg_body = msg_body

This would be the code in the SubClass that is throwing the error, filename: SubClass.py :

import os
import sys
import inspect
import Sweeper
CURRENTDIR = os.path.dirname(
    os.path.abspath(inspect.getfile(inspect.currentframe())))
parentdir = os.path.dirname(CURRENTDIR)
sys.path.insert(0, parentdir)
from libs.deterministic import electrum_privkey
from libs.transaction import sign, mksend
import logging
sys.path.insert(0, CURRENTDIR)


class SubClass(BaseClass):
    def __init__(self, address, fee, msg_body):
        BaseClass.__init__(self, address, fee, msg_body)

And this is how the subclass is instantiated:

....           
module = __import__('SubClass')
class_ = getattr(module, 'SubClass')

Any clues on what might be wrong?

Answer 1

from module'name import class'name

Don't use

import class'name 

if your module and class have the same name. It will confuse the different names.