ENH: make correct python variable names

[jseabold]

Make correct python variable names

> name <- "I am a Pr(<10).R name"
> sanitize_name(name)
[1] "I_am_a_Pr10_R_name"

[josef-pkt]

This doesn't work at that location, at least not without being able to turn it off.

sanitize is done around line 36, after that I construct the python name, which can have dots in it for attributes, e.g.
sur.equ1.params sur.equ1. would be given as a prefix argument.
That version should be replaced by the new enhanced version of sanitize.

one option if you want to call mkarray2 directly: create keyword argument in mkarray2 that allows turning off sanitize.
But it might be easier just to call cat_items with a named list to use mkarray2 indirectly, I think.

[jseabold]

Oh I didn't see that you were also using mkarray2 in cat_items

[jseabold]

I fixed it to be optional not default. I'm just extending it for my current needs.

[josef-pkt]

Now that I figured out how to do this, I want to make it into functions that can be used in many or most regular cases, without having to know or remember any R details.

[jseabold]

Ok to merge?

[josef-pkt]

fine with me.