add AttrDictCursor

[caitinggui]

Let results allow attribute-style access, and I think it can be a bit user-friendly.
data ={"row1": "the first row", "row2": "foo"}
data["row1"] VS data.row1

[methane]

I don't like it

[caitinggui]

But it can be more convenient and without any performance loss.

[methane]

You can use it even if PyMySQL doesn't provide it.
And why do you think your AttrDict is world best? Is yours better than attrdict on PyPI?

Anyway, I want to focus low-level, performance and stability.
I don't want to add user-friendly parts I maintain.