Update mpl_toolkits.gtktools.

[anntzer]

Actually, I'd rather just deprecate/kill gtktools and exceltools, which seem completely unmaintained and with no good reason to be shipped with matplotlib... but in case someone wants to keep them there:

• On Py2, np.rec.fromarrays cannot take a unicode string as names (but this module __future__-imports unicode_strings).
• CallbackRegistry ctor signature has changed.

[jenshnielsen]

@anntzer Thanks I am 👍 on deprecating both of these. Do you want to add that here too?

[anntzer]

Added a deprecation message.

[tacaswell]

we have exceltools?!?

Maybe suggest using pandas or openpyxl as an alternative to the excel tools?

[anntzer]

It's literally two functions on top of xlrd; I honestly can't imagine that anyone is relying on them... anyways, mentioned openpyxl as a replacement.

[WeatherGod]

We changed the ctor of CallbackRegistry years ago, IIRC. A bit telling,
methinks.

I also have no objections to deprecating these. I didn't even mention
gtktools in my book (slipped my mind).

On Wed, Jun 8, 2016 at 11:57 AM, Antony Lee notifications@github.com
wrote:

It's literally two functions on top of xlrd; I honestly can't imagine that
anyone is relying on them... anyways, mentioned openpyxl as a replacement.

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[tacaswell]

This needs a rebase (not sure why).

[anntzer]

done

[tacaswell]

backported to v2.x as c1410f9