Not all unicode works in plot (e.g. for axis labels)

[kcrisman]

This answer to an ask.sagemath question point out that

plot(sin, 0, pi, axes_labels=('Ось абсцисс $x$', 'Ось ординат $y$'))

doesn't work. Apparently before #21008 was resolved it was worse. Maybe we can fix this?

CC: @jm58660 @fchapoton @paulmasson @slel

Component: graphics

Keywords: unicode, plot

Reviewer: Paul Masson

Issue created by migration from https://trac.sagemath.org/ticket/21282

[fchapoton]

comment:1

This is purely a matplotlib problem with the default font. There is nothing to be fixed here. As explained in the doc of axes_labels in sage/plot/graphics.py, unicode characters are already accepted and transmitted correctly to matplotlib.

[kcrisman]

comment:2

So ... but at the same time we have a confused user. And

Note that this does not guarantee that matplotlib will handle the strings properly, although it should.

Well, it didn't, apparently, in this case. So is this an upstream problem to report there? I think it would be reasonable to put this as an example that doesn't work in our doc, even, if upstream won't/can't fix it.

[slel]

Changed keywords from none to unicode, plot

[slel]

comment:4

Fixed by #21008?

[mkoeppe]

comment:5

Adjusted example in the ticket description to py3 syntax

[mkoeppe]

comment:6

Outdated, works for me

[paulmasson]

Reviewer: Paul Masson