[emidln]

I'm not saying you should do this, but you can have an anonymous class like this:

  type('', (dict,), {'__init__': lambda self, *args, **kwargs: not super(self.__class__,self).__init__(*args, **kwargs) and setattr(self,'__dict__',self)})

Python easily allows multiple threads to exist at once. The only reason they don't run at the same time is an implementation detail of the most common Python implementation. Python running on the CLR, the JVM, and extensions for both CPython and PyPy show that you can run multiple threads concurrently if you really want to.