Revision 24ba7116-9c4b-46ce-981b-65cec13e1bae - Stack Overflow

I'm having trouble with getting multiple dynamic inheritance to work. These examples make the most sense to me([here][1] and [here][2]), but there's not enough code in one example for me to really understand what's going on and the other example doesn't seem to be working when I change it around for my needs (code below).

I'm creating a universal tool that works with multiple software packages. In one software, I need to inherit from 2 classes: 1 software specific API mixin, and 1 PySide class. In another software I only need to inherit from the 1 PySide class. 

The least elegant solution that I can think of is to just create 2 separate classes (with all of the same methods) and call either one based on the software that's running. I have a feeling there's a better solution.

Here's what I'm working with:

 ## MainWindow.py

 import os
 from maya.app.general.mayaMixin import MayaQWidgetDockableMixin
 
 # Build class
 def build_main_window(*arg):
 
 class Build(arg):
 def __init__(self):
 super( Build, self ).__init__()

 # ----- a bunch of methods
 
 # Get software
 software = os.getenv('SOFTWARE')

 # Run tool
 if software == 'maya':
 build_main_window(maya_mixin_class, QtGui.QWidget)
 if software == 'houdini':
 build_main_window(QtGui.QWidget)

I'm currently getting this error:

 # class Build(arg):
 # TypeError: Error when calling the metaclass bases
 # tuple() takes at most 1 argument (3 given) # 

Thanks for any help!

# EDIT:

 ## MainWindow.py

 import os
 
 # Build class 
 class BuildMixin():
 def __init__(self):
 super( BuildMixin, self ).__init__()

 # ----- a bunch of methods
 
 def build_main_window(*args):
 return type('Build', (BuildMixin, QtGui.QWidget) + args, {})
 
 # Get software
 software = os.getenv('SOFTWARE')
 
 # Run tool
 if software == 'maya':
 from maya.app.general.mayaMixin import MayaQWidgetDockableMixin
 
 Build = build_main_window(MayaQWidgetDockableMixin)
 
 if software == 'houdini':
 Build = build_main_window()


 [1]: https://stackoverflow.com/questions/21060073/dynamic-inheritance-in-python
 [2]: https://stackoverflow.com/questions/32104219/dynamic-multiple-inheritance-in-python