[PyQt] PyQt5 NULL QVariant

Phil Thompson phil at riverbankcomputing.com
Thu May 5 08:21:44 BST 2016

On 4 May 2016, at 10:41 pm, Matthias Kuhn <matthias at opengis.ch> wrote:
> Hi Phil
>> No you're not. I can see that the loss of QPyNullVariant can be inconvenient when dealing with C++ code that makes significant use of Null QVariants. However adding it back would itself be a break in compatibility. I'm happy to consider that but it wouldn't be until PyQt v5.7 at the earliest - unless you can think of another solution?
> Just wondering about the status of this. It's quite important for us to
> be able to plan ahead.
> * Can we expect it with PyQt 5.7?

I haven't decided yet.

> * Could this theoretically be done with changes to sip only? That would
> allow compatibility with older PyQt versions.


> * Could this be a wrapped QVariant instead of a PyQtNullVariant? (Just
> proposing this in the hope this might result in a less hacky solution.
> But anything that is not 0 or "" is fine with me.)

I don't know what you mean by a wrapped QVariant. QVariant is wrapped.


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