Questions on a couple of what I suspect are standard matplotlib idioms

Couldn't see the answers to these questions when looking

    > through the class reference docs, but they seem like
    > common tasks, so I suspect there are standard idiomatic
    > way of doing these. Could anyone refer me to examples
    > showing

Actually, neither of these exist in matplotlib-0.52, but see below.

    > 1) How to most easily label the x axis for data which is
    > plotted by date? (More specifically; does matplotlib have
    > any understanding of date values, and if so, how do I
    > access and use it?) I'm hoping there's an easier way than
    > explicitly labelling ticks on the x axis.

Full date support in matplotlib-0.53. Release should be this
afternoon. The new examples will be examples/date_demo*.py.

    > 2) I'll be drawing logy graphs, and I want a certain
    > slope to indicate a certain rate of growth, which means
    > that, when using matplotlib via TkAgg, I want it to keep
    > the ratio of the graph display height and display width
    > constant as it resizes the graph to take into account
    > changes in the size of the enclosing window. Is there a
    > standard way to do this?

This is a good idea but it's not implemented and should be. How do
you think the best way is to indicate a constrained resize? With a
modifier key held down during the resize?