[IronPython] Django, __unicode__, and #20366

[Dino Viehland]

Jeff wrote:
> OK - didn't realize that. Not sure it would really improve the
> behaviour all that much anyway.
> 
> Anything that really needs to know the difference and support
> IronPython can just check `str is unicode` anyway.
> 
> Random thought: str(x, yes_really=True) to always call __str__? :)

I'm not sure that'll help with compatibility w/ Django go unless
other implementations were to support it as well.