Allow different response classes in render().

[Brad]

Add a klass (or maybe response_class) parameter to render() that lets user specify a response class other than HttpResponse.

• Allow any subclass of http.HttpResponseBase
• Default to http.HttpResponse
• Do a quick issubclass() check on the argument

PR: ​https://github.com/django/django/pull/11162

What is the motivation for this?

render() is meant to be a shortcut and a convenience, so I am cautious about giving it too many parameters and defeating its original purpose. But adding this parameter seems straightforward, frequently useful, and a good trade-off in that it's still keeping the function lightweight and adding flexibility without code complexity.

[Mariusz Felisiak]

Thanks for the ticket, however render() is a simple, straightforward, and two line shortcut. IMO we shouldn't add any complexity to it. Adding klass (or response_class) will require changes in documentation and can be confusing. Moreover I don't think that your use case is really common, because render() returns HttpResponse since its introduction in b3d2091681d31bf2a6f8c4a1f9f1fb32393864c8 and as far as I'm concerned it is a a first request to change this.