[Bug]: `FigureCanvasPgf` does not use `xelatex`

### Bug summary

`FigureCanvasPgf` does not use `xelatex` but uses `pdflatex`.

### Code for reproduction

```Python
"""
============
PGF preamble
modified from the official example:
https://matplotlib.org/stable/users/explain/text/pgf.html#custom-preamble
============
"""

import matplotlib as mpl
import matplotlib.pyplot as plt

# "The last method allows you to keep using regular interactive backends and to save xelatex, lualatex or pdflatex compiled PDF files from the graphical user interface." said by tutorial
from matplotlib.backends.backend_pgf import FigureCanvasPgf
mpl.backend_bases.register_backend("pdf", FigureCanvasPgf)

# mpl.use("pgf")  # uncomment to work!
plt.rcParams.update(
    {
        "font.family": "serif",  # use serif/main font for text elements
        "text.usetex": True,  # use inline math for ticks
        "pgf.rcfonts": False,  # don't setup fonts from rc parameters
        "pgf.preamble": "\n".join(
            [
                r"\usepackage{url}",  # load additional packages
                r"\usepackage{unicode-math}",  # unicode math setup
                r"\setmainfont{DejaVu Serif}",  # serif font via preamble
            ]
        ),
    }
)

fig, ax = plt.subplots(figsize=(4.5, 2.5))

ax.plot(range(5))

ax.set_xlabel("unicode text: я, ψ, €, ü")
ax.set_ylabel(r"\url{https://matplotlib.org}")
ax.legend(["unicode math: $λ=∑_i^∞ μ_i^2$"])

fig.tight_layout(pad=0.5)
plt.show()
```


### Actual outcome

<details>

<summary>

```python-traceback
RuntimeError: latex was not able to process the following string:
b'unicode text: \\u044f, \\u03c8, \\u20ac, \\xfc'

Here is the full command invocation and its output:

latex -interaction=nonstopmode --halt-on-error --output-directory=tmpsm7x8wc7 077a9af4443e140dcb75f16b8d670c44.tex

This is pdfTeX, Version 3.141592653-2.6-1.40.26 (TeX Live 2024[/Arch](http://localhost:8888/Arch) Linux) (preloaded format=latex)
 restricted \write18 enabled.
```

</summary>

```python-traceback
---------------------------------------------------------------------------
RuntimeError                              Traceback (most recent call last)
Cell In[1], line 37
     34 ax.set_ylabel(r"\url{https://matplotlib.org}")
     35 ax.legend(["unicode math: $λ=∑_i^∞ μ_i^2$"])
---> 37 fig.tight_layout(pad=0.5)
     38 plt.show()
     39 # fig.savefig("/tmp/test.pdf")

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/figure.py:3540](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/figure.py#line=3539), in Figure.tight_layout(self, pad, h_pad, w_pad, rect)
   3538 previous_engine = self.get_layout_engine()
   3539 self.set_layout_engine(engine)
-> 3540 engine.execute(self)
   3541 if previous_engine is not None and not isinstance(
   3542     previous_engine, (TightLayoutEngine, PlaceHolderLayoutEngine)
   3543 ):
   3544     _api.warn_external('The figure layout has changed to tight')

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/layout_engine.py:183](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/layout_engine.py#line=182), in TightLayoutEngine.execute(self, fig)
    181 renderer = fig._get_renderer()
    182 with getattr(renderer, "_draw_disabled", nullcontext)():
--> 183     kwargs = get_tight_layout_figure(
    184         fig, fig.axes, get_subplotspec_list(fig.axes), renderer,
    185         pad=info['pad'], h_pad=info['h_pad'], w_pad=info['w_pad'],
    186         rect=info['rect'])
    187 if kwargs:
    188     fig.subplots_adjust(**kwargs)

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/_tight_layout.py:266](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/_tight_layout.py#line=265), in get_tight_layout_figure(fig, axes_list, subplotspec_list, renderer, pad, h_pad, w_pad, rect)
    261         return {}
    262     span_pairs.append((
    263         slice(ss.rowspan.start * div_row, ss.rowspan.stop * div_row),
    264         slice(ss.colspan.start * div_col, ss.colspan.stop * div_col)))
--> 266 kwargs = _auto_adjust_subplotpars(fig, renderer,
    267                                   shape=(max_nrows, max_ncols),
    268                                   span_pairs=span_pairs,
    269                                   subplot_list=subplot_list,
    270                                   ax_bbox_list=ax_bbox_list,
    271                                   pad=pad, h_pad=h_pad, w_pad=w_pad)
    273 # kwargs can be none if tight_layout fails...
    274 if rect is not None and kwargs is not None:
    275     # if rect is given, the whole subplots area (including
    276     # labels) will fit into the rect instead of the
   (...)
    280     # auto_adjust_subplotpars twice, where the second run
    281     # with adjusted rect parameters.

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/_tight_layout.py:82](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/_tight_layout.py#line=81), in _auto_adjust_subplotpars(fig, renderer, shape, span_pairs, subplot_list, ax_bbox_list, pad, h_pad, w_pad, rect)
     80 for ax in subplots:
     81     if ax.get_visible():
---> 82         bb += [martist._get_tightbbox_for_layout_only(ax, renderer)]
     84 tight_bbox_raw = Bbox.union(bb)
     85 tight_bbox = fig.transFigure.inverted().transform_bbox(tight_bbox_raw)

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/artist.py:1411](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/artist.py#line=1410), in _get_tightbbox_for_layout_only(obj, *args, **kwargs)
   1405 """
   1406 Matplotlib's `.Axes.get_tightbbox` and `.Axis.get_tightbbox` support a
   1407 *for_layout_only* kwarg; this helper tries to use the kwarg but skips it
   1408 when encountering third-party subclasses that do not support it.
   1409 """
   1410 try:
-> 1411     return obj.get_tightbbox(*args, **{**kwargs, "for_layout_only": True})
   1412 except TypeError:
   1413     return obj.get_tightbbox(*args, **kwargs)

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/_api/deprecation.py:454](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/_api/deprecation.py#line=453), in make_keyword_only.<locals>.wrapper(*args, **kwargs)
    448 if len(args) > name_idx:
    449     warn_deprecated(
    450         since, message="Passing the %(name)s %(obj_type)s "
    451         "positionally is deprecated since Matplotlib %(since)s; the "
    452         "parameter will become keyword-only %(removal)s.",
    453         name=name, obj_type=f"parameter of {func.__name__}()")
--> 454 return func(*args, **kwargs)

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/axes/_base.py:4395](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/axes/_base.py#line=4394), in _AxesBase.get_tightbbox(self, renderer, call_axes_locator, bbox_extra_artists, for_layout_only)
   4393 for axis in self._axis_map.values():
   4394     if self.axison and axis.get_visible():
-> 4395         ba = martist._get_tightbbox_for_layout_only(axis, renderer)
   4396         if ba:
   4397             bb.append(ba)

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/artist.py:1411](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/artist.py#line=1410), in _get_tightbbox_for_layout_only(obj, *args, **kwargs)
   1405 """
   1406 Matplotlib's `.Axes.get_tightbbox` and `.Axis.get_tightbbox` support a
   1407 *for_layout_only* kwarg; this helper tries to use the kwarg but skips it
   1408 when encountering third-party subclasses that do not support it.
   1409 """
   1410 try:
-> 1411     return obj.get_tightbbox(*args, **{**kwargs, "for_layout_only": True})
   1412 except TypeError:
   1413     return obj.get_tightbbox(*args, **kwargs)

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/axis.py:1352](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/axis.py#line=1351), in Axis.get_tightbbox(self, renderer, for_layout_only)
   1350 # take care of label
   1351 if self.label.get_visible():
-> 1352     bb = self.label.get_window_extent(renderer)
   1353     # for constrained[/tight_layout](http://localhost:8888/tight_layout), we want to ignore the label's
   1354     # width[/height](http://localhost:8888/height) because the adjustments they make can't be improved.
   1355     # this code collapses the relevant direction
   1356     if for_layout_only:

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/text.py:956](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/text.py#line=955), in Text.get_window_extent(self, renderer, dpi)
    951     raise RuntimeError(
    952         "Cannot get window extent of text w[/o](http://localhost:8888/o) renderer. You likely "
    953         "want to call 'figure.draw_without_rendering()' first.")
    955 with cbook._setattr_cm(self.figure, dpi=dpi):
--> 956     bbox, info, descent = self._get_layout(self._renderer)
    957     x, y = self.get_unitless_position()
    958     x, y = self.get_transform().transform((x, y))

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/text.py:381](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/text.py#line=380), in Text._get_layout(self, renderer)
    379 clean_line, ismath = self._preprocess_math(line)
    380 if clean_line:
--> 381     w, h, d = _get_text_metrics_with_cache(
    382         renderer, clean_line, self._fontproperties,
    383         ismath=ismath, dpi=self.figure.dpi)
    384 else:
    385     w = h = d = 0

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/text.py:69](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/text.py#line=68), in _get_text_metrics_with_cache(renderer, text, fontprop, ismath, dpi)
     66 """Call ``renderer.get_text_width_height_descent``, caching the results."""
     67 # Cached based on a copy of fontprop so that later in-place mutations of
     68 # the passed-in argument do not mess up the cache.
---> 69 return _get_text_metrics_with_cache_impl(
     70     weakref.ref(renderer), text, fontprop.copy(), ismath, dpi)

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/text.py:77](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/text.py#line=76), in _get_text_metrics_with_cache_impl(renderer_ref, text, fontprop, ismath, dpi)
     73 @functools.lru_cache(4096)
     74 def _get_text_metrics_with_cache_impl(
     75         renderer_ref, text, fontprop, ismath, dpi):
     76     # dpi is unused, but participates in cache invalidation (via the renderer).
---> 77     return renderer_ref().get_text_width_height_descent(text, fontprop, ismath)

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/backends/backend_agg.py:213](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/backends/backend_agg.py#line=212), in RendererAgg.get_text_width_height_descent(self, s, prop, ismath)
    211 _api.check_in_list(["TeX", True, False], ismath=ismath)
    212 if ismath == "TeX":
--> 213     return super().get_text_width_height_descent(s, prop, ismath)
    215 if ismath:
    216     ox, oy, width, height, descent, font_image = \
    217         self.mathtext_parser.parse(s, self.dpi, prop)

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/backend_bases.py:652](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/backend_bases.py#line=651), in RendererBase.get_text_width_height_descent(self, s, prop, ismath)
    648 fontsize = prop.get_size_in_points()
    650 if ismath == 'TeX':
    651     # todo: handle properties
--> 652     return self.get_texmanager().get_text_width_height_descent(
    653         s, fontsize, renderer=self)
    655 dpi = self.points_to_pixels(72)
    656 if ismath:

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/texmanager.py:363](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/texmanager.py#line=362), in TexManager.get_text_width_height_descent(cls, tex, fontsize, renderer)
    361 if tex.strip() == '':
    362     return 0, 0, 0
--> 363 dvifile = cls.make_dvi(tex, fontsize)
    364 dpi_fraction = renderer.points_to_pixels(1.) if renderer else 1
    365 with dviread.Dvi(dvifile, 72 * dpi_fraction) as dvi:

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/texmanager.py:295](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/texmanager.py#line=294), in TexManager.make_dvi(cls, tex, fontsize)
    293     with TemporaryDirectory(dir=cwd) as tmpdir:
    294         tmppath = Path(tmpdir)
--> 295         cls._run_checked_subprocess(
    296             ["latex", "-interaction=nonstopmode", "--halt-on-error",
    297              f"--output-directory={tmppath.name}",
    298              f"{texfile.name}"], tex, cwd=cwd)
    299         (tmppath [/](http://localhost:8888/) Path(dvifile).name).replace(dvifile)
    300 return dvifile

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/texmanager.py:258](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/texmanager.py#line=257), in TexManager._run_checked_subprocess(cls, command, tex, cwd)
    254     raise RuntimeError(
    255         f'Failed to process string with tex because {command[0]} '
    256         'could not be found') from exc
    257 except subprocess.CalledProcessError as exc:
--> 258     raise RuntimeError(
    259         '{prog} was not able to process the following string:\n'
    260         '{tex!r}\n\n'
    261         'Here is the full command invocation and its output:\n\n'
    262         '{format_command}\n\n'
    263         '{exc}\n\n'.format(
    264             prog=command[0],
    265             format_command=cbook._pformat_subprocess(command),
    266             tex=tex.encode('unicode_escape'),
    267             exc=exc.output.decode('utf-8', 'backslashreplace'))
    268         ) from None
    269 _log.debug(report)
    270 return report

RuntimeError: latex was not able to process the following string:
b'unicode text: \\u044f, \\u03c8, \\u20ac, \\xfc'

Here is the full command invocation and its output:

latex -interaction=nonstopmode --halt-on-error --output-directory=tmpsm7x8wc7 077a9af4443e140dcb75f16b8d670c44.tex

This is pdfTeX, Version 3.141592653-2.6-1.40.26 (TeX Live 2024[/Arch](http://localhost:8888/Arch) Linux) (preloaded format=latex)
 restricted \write18 enabled.
entering extended mode
(./077a9af4443e140dcb75f16b8d670c44.tex
LaTeX2e <2023-11-01> patch level 1
L3 programming layer <2024-02-20>
([/usr/share/texmf-dist/tex/latex/base/article.cls](http://localhost:8888/usr/share/texmf-dist/tex/latex/base/article.cls)
Document Class: article 2023[/05/17](http://localhost:8888/05/17) v1.4n Standard LaTeX document class
([/usr/share/texmf-dist/tex/latex/base/size10.clo](http://localhost:8888/usr/share/texmf-dist/tex/latex/base/size10.clo)))
([/usr/share/texmf-dist/tex/latex/type1cm/type1cm.sty](http://localhost:8888/usr/share/texmf-dist/tex/latex/type1cm/type1cm.sty))
([/usr/share/texmf-dist/tex/latex/cm-super/type1ec.sty](http://localhost:8888/usr/share/texmf-dist/tex/latex/cm-super/type1ec.sty)
([/usr/share/texmf-dist/tex/latex/base/t1cmr.fd](http://localhost:8888/usr/share/texmf-dist/tex/latex/base/t1cmr.fd)))
([/usr/share/texmf-dist/tex/latex/base/inputenc.sty](http://localhost:8888/usr/share/texmf-dist/tex/latex/base/inputenc.sty))
([/usr/share/texmf-dist/tex/latex/geometry/geometry.sty](http://localhost:8888/usr/share/texmf-dist/tex/latex/geometry/geometry.sty)
([/usr/share/texmf-dist/tex/latex/graphics/keyval.sty](http://localhost:8888/usr/share/texmf-dist/tex/latex/graphics/keyval.sty))
([/usr/share/texmf-dist/tex/generic/iftex/ifvtex.sty](http://localhost:8888/usr/share/texmf-dist/tex/generic/iftex/ifvtex.sty)
([/usr/share/texmf-dist/tex/generic/iftex/iftex.sty](http://localhost:8888/usr/share/texmf-dist/tex/generic/iftex/iftex.sty))))
([/usr/share/texmf-dist/tex/latex/underscore/underscore.sty](http://localhost:8888/usr/share/texmf-dist/tex/latex/underscore/underscore.sty))
([/usr/share/texmf-dist/tex/latex/firstaid/underscore-ltx.sty](http://localhost:8888/usr/share/texmf-dist/tex/latex/firstaid/underscore-ltx.sty))
([/usr/share/texmf-dist/tex/latex/base/textcomp.sty](http://localhost:8888/usr/share/texmf-dist/tex/latex/base/textcomp.sty))
([/usr/share/texmf-dist/tex/latex/l3backend/l3backend-dvips.def](http://localhost:8888/usr/share/texmf-dist/tex/latex/l3backend/l3backend-dvips.def))
No file 077a9af4443e140dcb75f16b8d670c44.aux.
*geometry* driver: auto-detecting
*geometry* detected driver: dvips

! LaTeX Error: Unicode character я (U+044F)
               not set up for use with LaTeX.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
                                                  
l.29 {\rmfamily unicode text: я
                                , ψ, €, ü}%
No pages of output.
Transcript written on tmpsm7x8wc7[/077a9af4443e140dcb75f16b8d670c44.log.](http://localhost:8888/077a9af4443e140dcb75f16b8d670c44.log.)


Error in callback <function _draw_all_if_interactive at 0x7feb602cc7c0> (for post_execute), with arguments args (),kwargs {}:

---------------------------------------------------------------------------
RuntimeError                              Traceback (most recent call last)
File [~/mambaforge/lib/python3.11/site-packages/matplotlib/pyplot.py:197](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/pyplot.py#line=196), in _draw_all_if_interactive()
    195 def _draw_all_if_interactive() -> None:
    196     if matplotlib.is_interactive():
--> 197         draw_all()

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/_pylab_helpers.py:132](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/_pylab_helpers.py#line=131), in Gcf.draw_all(cls, force)
    130 for manager in cls.get_all_fig_managers():
    131     if force or manager.canvas.figure.stale:
--> 132         manager.canvas.draw_idle()

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/backend_bases.py:1893](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/backend_bases.py#line=1892), in FigureCanvasBase.draw_idle(self, *args, **kwargs)
   1891 if not self._is_idle_drawing:
   1892     with self._idle_draw_cntx():
-> 1893         self.draw(*args, **kwargs)

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/backends/backend_agg.py:388](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/backends/backend_agg.py#line=387), in FigureCanvasAgg.draw(self)
    385 # Acquire a lock on the shared font cache.
    386 with (self.toolbar._wait_cursor_for_draw_cm() if self.toolbar
    387       else nullcontext()):
--> 388     self.figure.draw(self.renderer)
    389     # A GUI class may be need to update a window using this draw, so
    390     # don't forget to call the superclass.
    391     super().draw()

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/artist.py:95](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/artist.py#line=94), in _finalize_rasterization.<locals>.draw_wrapper(artist, renderer, *args, **kwargs)
     93 @wraps(draw)
     94 def draw_wrapper(artist, renderer, *args, **kwargs):
---> 95     result = draw(artist, renderer, *args, **kwargs)
     96     if renderer._rasterizing:
     97         renderer.stop_rasterizing()

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/artist.py:72](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/artist.py#line=71), in allow_rasterization.<locals>.draw_wrapper(artist, renderer)
     69     if artist.get_agg_filter() is not None:
     70         renderer.start_filter()
---> 72     return draw(artist, renderer)
     73 finally:
     74     if artist.get_agg_filter() is not None:

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/figure.py:3154](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/figure.py#line=3153), in Figure.draw(self, renderer)
   3151         # ValueError can occur when resizing a window.
   3153 self.patch.draw(renderer)
-> 3154 mimage._draw_list_compositing_images(
   3155     renderer, self, artists, self.suppressComposite)
   3157 for sfig in self.subfigs:
   3158     sfig.draw(renderer)

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/image.py:132](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/image.py#line=131), in _draw_list_compositing_images(renderer, parent, artists, suppress_composite)
    130 if not_composite or not has_images:
    131     for a in artists:
--> 132         a.draw(renderer)
    133 else:
    134     # Composite any adjacent images together
    135     image_group = []

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/artist.py:72](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/artist.py#line=71), in allow_rasterization.<locals>.draw_wrapper(artist, renderer)
     69     if artist.get_agg_filter() is not None:
     70         renderer.start_filter()
---> 72     return draw(artist, renderer)
     73 finally:
     74     if artist.get_agg_filter() is not None:

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/axes/_base.py:3070](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/axes/_base.py#line=3069), in _AxesBase.draw(self, renderer)
   3067 if artists_rasterized:
   3068     _draw_rasterized(self.figure, artists_rasterized, renderer)
-> 3070 mimage._draw_list_compositing_images(
   3071     renderer, self, artists, self.figure.suppressComposite)
   3073 renderer.close_group('axes')
   3074 self.stale = False

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/image.py:132](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/image.py#line=131), in _draw_list_compositing_images(renderer, parent, artists, suppress_composite)
    130 if not_composite or not has_images:
    131     for a in artists:
--> 132         a.draw(renderer)
    133 else:
    134     # Composite any adjacent images together
    135     image_group = []

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/artist.py:72](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/artist.py#line=71), in allow_rasterization.<locals>.draw_wrapper(artist, renderer)
     69     if artist.get_agg_filter() is not None:
     70         renderer.start_filter()
---> 72     return draw(artist, renderer)
     73 finally:
     74     if artist.get_agg_filter() is not None:

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/axis.py:1395](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/axis.py#line=1394), in Axis.draw(self, renderer, *args, **kwargs)
   1393 # Shift label away from axes to avoid overlapping ticklabels.
   1394 self._update_label_position(renderer)
-> 1395 self.label.draw(renderer)
   1397 self._update_offset_text_position(tlb1, tlb2)
   1398 self.offsetText.set_text(self.major.formatter.get_offset())

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/artist.py:72](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/artist.py#line=71), in allow_rasterization.<locals>.draw_wrapper(artist, renderer)
     69     if artist.get_agg_filter() is not None:
     70         renderer.start_filter()
---> 72     return draw(artist, renderer)
     73 finally:
     74     if artist.get_agg_filter() is not None:

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/text.py:748](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/text.py#line=747), in Text.draw(self, renderer)
    745 renderer.open_group('text', self.get_gid())
    747 with self._cm_set(text=self._get_wrapped_text()):
--> 748     bbox, info, descent = self._get_layout(renderer)
    749     trans = self.get_transform()
    751     # don't use self.get_position here, which refers to text
    752     # position in Text:

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/text.py:381](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/text.py#line=380), in Text._get_layout(self, renderer)
    379 clean_line, ismath = self._preprocess_math(line)
    380 if clean_line:
--> 381     w, h, d = _get_text_metrics_with_cache(
    382         renderer, clean_line, self._fontproperties,
    383         ismath=ismath, dpi=self.figure.dpi)
    384 else:
    385     w = h = d = 0

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/text.py:69](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/text.py#line=68), in _get_text_metrics_with_cache(renderer, text, fontprop, ismath, dpi)
     66 """Call ``renderer.get_text_width_height_descent``, caching the results."""
     67 # Cached based on a copy of fontprop so that later in-place mutations of
     68 # the passed-in argument do not mess up the cache.
---> 69 return _get_text_metrics_with_cache_impl(
     70     weakref.ref(renderer), text, fontprop.copy(), ismath, dpi)

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/text.py:77](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/text.py#line=76), in _get_text_metrics_with_cache_impl(renderer_ref, text, fontprop, ismath, dpi)
     73 @functools.lru_cache(4096)
     74 def _get_text_metrics_with_cache_impl(
     75         renderer_ref, text, fontprop, ismath, dpi):
     76     # dpi is unused, but participates in cache invalidation (via the renderer).
---> 77     return renderer_ref().get_text_width_height_descent(text, fontprop, ismath)

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/backends/backend_agg.py:213](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/backends/backend_agg.py#line=212), in RendererAgg.get_text_width_height_descent(self, s, prop, ismath)
    211 _api.check_in_list(["TeX", True, False], ismath=ismath)
    212 if ismath == "TeX":
--> 213     return super().get_text_width_height_descent(s, prop, ismath)
    215 if ismath:
    216     ox, oy, width, height, descent, font_image = \
    217         self.mathtext_parser.parse(s, self.dpi, prop)

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/backend_bases.py:652](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/backend_bases.py#line=651), in RendererBase.get_text_width_height_descent(self, s, prop, ismath)
    648 fontsize = prop.get_size_in_points()
    650 if ismath == 'TeX':
    651     # todo: handle properties
--> 652     return self.get_texmanager().get_text_width_height_descent(
    653         s, fontsize, renderer=self)
    655 dpi = self.points_to_pixels(72)
    656 if ismath:

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/texmanager.py:363](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/texmanager.py#line=362), in TexManager.get_text_width_height_descent(cls, tex, fontsize, renderer)
    361 if tex.strip() == '':
    362     return 0, 0, 0
--> 363 dvifile = cls.make_dvi(tex, fontsize)
    364 dpi_fraction = renderer.points_to_pixels(1.) if renderer else 1
    365 with dviread.Dvi(dvifile, 72 * dpi_fraction) as dvi:

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/texmanager.py:295](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/texmanager.py#line=294), in TexManager.make_dvi(cls, tex, fontsize)
    293     with TemporaryDirectory(dir=cwd) as tmpdir:
    294         tmppath = Path(tmpdir)
--> 295         cls._run_checked_subprocess(
    296             ["latex", "-interaction=nonstopmode", "--halt-on-error",
    297              f"--output-directory={tmppath.name}",
    298              f"{texfile.name}"], tex, cwd=cwd)
    299         (tmppath [/](http://localhost:8888/) Path(dvifile).name).replace(dvifile)
    300 return dvifile

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/texmanager.py:258](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/texmanager.py#line=257), in TexManager._run_checked_subprocess(cls, command, tex, cwd)
    254     raise RuntimeError(
    255         f'Failed to process string with tex because {command[0]} '
    256         'could not be found') from exc
    257 except subprocess.CalledProcessError as exc:
--> 258     raise RuntimeError(
    259         '{prog} was not able to process the following string:\n'
    260         '{tex!r}\n\n'
    261         'Here is the full command invocation and its output:\n\n'
    262         '{format_command}\n\n'
    263         '{exc}\n\n'.format(
    264             prog=command[0],
    265             format_command=cbook._pformat_subprocess(command),
    266             tex=tex.encode('unicode_escape'),
    267             exc=exc.output.decode('utf-8', 'backslashreplace'))
    268         ) from None
    269 _log.debug(report)
    270 return report

RuntimeError: latex was not able to process the following string:
b'unicode text: \\u044f, \\u03c8, \\u20ac, \\xfc'

Here is the full command invocation and its output:

latex -interaction=nonstopmode --halt-on-error --output-directory=tmpb6xko1st 077a9af4443e140dcb75f16b8d670c44.tex

This is pdfTeX, Version 3.141592653-2.6-1.40.26 (TeX Live 2024[/Arch](http://localhost:8888/Arch) Linux) (preloaded format=latex)
 restricted \write18 enabled.
entering extended mode
(./077a9af4443e140dcb75f16b8d670c44.tex
LaTeX2e <2023-11-01> patch level 1
L3 programming layer <2024-02-20>
([/usr/share/texmf-dist/tex/latex/base/article.cls](http://localhost:8888/usr/share/texmf-dist/tex/latex/base/article.cls)
Document Class: article 2023[/05/17](http://localhost:8888/05/17) v1.4n Standard LaTeX document class
([/usr/share/texmf-dist/tex/latex/base/size10.clo](http://localhost:8888/usr/share/texmf-dist/tex/latex/base/size10.clo)))
([/usr/share/texmf-dist/tex/latex/type1cm/type1cm.sty](http://localhost:8888/usr/share/texmf-dist/tex/latex/type1cm/type1cm.sty))
([/usr/share/texmf-dist/tex/latex/cm-super/type1ec.sty](http://localhost:8888/usr/share/texmf-dist/tex/latex/cm-super/type1ec.sty)
([/usr/share/texmf-dist/tex/latex/base/t1cmr.fd](http://localhost:8888/usr/share/texmf-dist/tex/latex/base/t1cmr.fd)))
([/usr/share/texmf-dist/tex/latex/base/inputenc.sty](http://localhost:8888/usr/share/texmf-dist/tex/latex/base/inputenc.sty))
([/usr/share/texmf-dist/tex/latex/geometry/geometry.sty](http://localhost:8888/usr/share/texmf-dist/tex/latex/geometry/geometry.sty)
([/usr/share/texmf-dist/tex/latex/graphics/keyval.sty](http://localhost:8888/usr/share/texmf-dist/tex/latex/graphics/keyval.sty))
([/usr/share/texmf-dist/tex/generic/iftex/ifvtex.sty](http://localhost:8888/usr/share/texmf-dist/tex/generic/iftex/ifvtex.sty)
([/usr/share/texmf-dist/tex/generic/iftex/iftex.sty](http://localhost:8888/usr/share/texmf-dist/tex/generic/iftex/iftex.sty))))
([/usr/share/texmf-dist/tex/latex/underscore/underscore.sty](http://localhost:8888/usr/share/texmf-dist/tex/latex/underscore/underscore.sty))
([/usr/share/texmf-dist/tex/latex/firstaid/underscore-ltx.sty](http://localhost:8888/usr/share/texmf-dist/tex/latex/firstaid/underscore-ltx.sty))
([/usr/share/texmf-dist/tex/latex/base/textcomp.sty](http://localhost:8888/usr/share/texmf-dist/tex/latex/base/textcomp.sty))
([/usr/share/texmf-dist/tex/latex/l3backend/l3backend-dvips.def](http://localhost:8888/usr/share/texmf-dist/tex/latex/l3backend/l3backend-dvips.def))
No file 077a9af4443e140dcb75f16b8d670c44.aux.
*geometry* driver: auto-detecting
*geometry* detected driver: dvips

! LaTeX Error: Unicode character я (U+044F)
               not set up for use with LaTeX.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
                                                  
l.29 {\rmfamily unicode text: я
                                , ψ, €, ü}%
No pages of output.
Transcript written on tmpb6xko1st[/077a9af4443e140dcb75f16b8d670c44.log.](http://localhost:8888/077a9af4443e140dcb75f16b8d670c44.log.)


---------------------------------------------------------------------------
RuntimeError                              Traceback (most recent call last)
File [~/mambaforge/lib/python3.11/site-packages/IPython/core/formatters.py:343](http://localhost:8888/mambaforge/lib/python3.11/site-packages/IPython/core/formatters.py#line=342), in BaseFormatter.__call__(self, obj)
    341     pass
    342 else:
--> 343     return printer(obj)
    344 # Finally look for special method names
    345 method = get_real_method(obj, self.print_method)

File [~/mambaforge/lib/python3.11/site-packages/IPython/core/pylabtools.py:152](http://localhost:8888/mambaforge/lib/python3.11/site-packages/IPython/core/pylabtools.py#line=151), in print_figure(fig, fmt, bbox_inches, base64, **kwargs)
    149     from matplotlib.backend_bases import FigureCanvasBase
    150     FigureCanvasBase(fig)
--> 152 fig.canvas.print_figure(bytes_io, **kw)
    153 data = bytes_io.getvalue()
    154 if fmt == 'svg':

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/backend_bases.py:2164](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/backend_bases.py#line=2163), in FigureCanvasBase.print_figure(self, filename, dpi, facecolor, edgecolor, orientation, format, bbox_inches, pad_inches, bbox_extra_artists, backend, **kwargs)
   2161     # we do this instead of `self.figure.draw_without_rendering`
   2162     # so that we can inject the orientation
   2163     with getattr(renderer, "_draw_disabled", nullcontext)():
-> 2164         self.figure.draw(renderer)
   2165 if bbox_inches:
   2166     if bbox_inches == "tight":

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/artist.py:95](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/artist.py#line=94), in _finalize_rasterization.<locals>.draw_wrapper(artist, renderer, *args, **kwargs)
     93 @wraps(draw)
     94 def draw_wrapper(artist, renderer, *args, **kwargs):
---> 95     result = draw(artist, renderer, *args, **kwargs)
     96     if renderer._rasterizing:
     97         renderer.stop_rasterizing()

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/artist.py:72](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/artist.py#line=71), in allow_rasterization.<locals>.draw_wrapper(artist, renderer)
     69     if artist.get_agg_filter() is not None:
     70         renderer.start_filter()
---> 72     return draw(artist, renderer)
     73 finally:
     74     if artist.get_agg_filter() is not None:

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/figure.py:3154](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/figure.py#line=3153), in Figure.draw(self, renderer)
   3151         # ValueError can occur when resizing a window.
   3153 self.patch.draw(renderer)
-> 3154 mimage._draw_list_compositing_images(
   3155     renderer, self, artists, self.suppressComposite)
   3157 for sfig in self.subfigs:
   3158     sfig.draw(renderer)

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/image.py:132](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/image.py#line=131), in _draw_list_compositing_images(renderer, parent, artists, suppress_composite)
    130 if not_composite or not has_images:
    131     for a in artists:
--> 132         a.draw(renderer)
    133 else:
    134     # Composite any adjacent images together
    135     image_group = []

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/artist.py:72](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/artist.py#line=71), in allow_rasterization.<locals>.draw_wrapper(artist, renderer)
     69     if artist.get_agg_filter() is not None:
     70         renderer.start_filter()
---> 72     return draw(artist, renderer)
     73 finally:
     74     if artist.get_agg_filter() is not None:

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/axes/_base.py:3070](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/axes/_base.py#line=3069), in _AxesBase.draw(self, renderer)
   3067 if artists_rasterized:
   3068     _draw_rasterized(self.figure, artists_rasterized, renderer)
-> 3070 mimage._draw_list_compositing_images(
   3071     renderer, self, artists, self.figure.suppressComposite)
   3073 renderer.close_group('axes')
   3074 self.stale = False

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/image.py:132](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/image.py#line=131), in _draw_list_compositing_images(renderer, parent, artists, suppress_composite)
    130 if not_composite or not has_images:
    131     for a in artists:
--> 132         a.draw(renderer)
    133 else:
    134     # Composite any adjacent images together
    135     image_group = []

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/artist.py:72](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/artist.py#line=71), in allow_rasterization.<locals>.draw_wrapper(artist, renderer)
     69     if artist.get_agg_filter() is not None:
     70         renderer.start_filter()
---> 72     return draw(artist, renderer)
     73 finally:
     74     if artist.get_agg_filter() is not None:

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/axis.py:1395](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/axis.py#line=1394), in Axis.draw(self, renderer, *args, **kwargs)
   1393 # Shift label away from axes to avoid overlapping ticklabels.
   1394 self._update_label_position(renderer)
-> 1395 self.label.draw(renderer)
   1397 self._update_offset_text_position(tlb1, tlb2)
   1398 self.offsetText.set_text(self.major.formatter.get_offset())

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/artist.py:72](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/artist.py#line=71), in allow_rasterization.<locals>.draw_wrapper(artist, renderer)
     69     if artist.get_agg_filter() is not None:
     70         renderer.start_filter()
---> 72     return draw(artist, renderer)
     73 finally:
     74     if artist.get_agg_filter() is not None:

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/text.py:748](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/text.py#line=747), in Text.draw(self, renderer)
    745 renderer.open_group('text', self.get_gid())
    747 with self._cm_set(text=self._get_wrapped_text()):
--> 748     bbox, info, descent = self._get_layout(renderer)
    749     trans = self.get_transform()
    751     # don't use self.get_position here, which refers to text
    752     # position in Text:

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/text.py:381](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/text.py#line=380), in Text._get_layout(self, renderer)
    379 clean_line, ismath = self._preprocess_math(line)
    380 if clean_line:
--> 381     w, h, d = _get_text_metrics_with_cache(
    382         renderer, clean_line, self._fontproperties,
    383         ismath=ismath, dpi=self.figure.dpi)
    384 else:
    385     w = h = d = 0

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/text.py:69](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/text.py#line=68), in _get_text_metrics_with_cache(renderer, text, fontprop, ismath, dpi)
     66 """Call ``renderer.get_text_width_height_descent``, caching the results."""
     67 # Cached based on a copy of fontprop so that later in-place mutations of
     68 # the passed-in argument do not mess up the cache.
---> 69 return _get_text_metrics_with_cache_impl(
     70     weakref.ref(renderer), text, fontprop.copy(), ismath, dpi)

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/text.py:77](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/text.py#line=76), in _get_text_metrics_with_cache_impl(renderer_ref, text, fontprop, ismath, dpi)
     73 @functools.lru_cache(4096)
     74 def _get_text_metrics_with_cache_impl(
     75         renderer_ref, text, fontprop, ismath, dpi):
     76     # dpi is unused, but participates in cache invalidation (via the renderer).
---> 77     return renderer_ref().get_text_width_height_descent(text, fontprop, ismath)

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/backends/backend_agg.py:213](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/backends/backend_agg.py#line=212), in RendererAgg.get_text_width_height_descent(self, s, prop, ismath)
    211 _api.check_in_list(["TeX", True, False], ismath=ismath)
    212 if ismath == "TeX":
--> 213     return super().get_text_width_height_descent(s, prop, ismath)
    215 if ismath:
    216     ox, oy, width, height, descent, font_image = \
    217         self.mathtext_parser.parse(s, self.dpi, prop)

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/backend_bases.py:652](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/backend_bases.py#line=651), in RendererBase.get_text_width_height_descent(self, s, prop, ismath)
    648 fontsize = prop.get_size_in_points()
    650 if ismath == 'TeX':
    651     # todo: handle properties
--> 652     return self.get_texmanager().get_text_width_height_descent(
    653         s, fontsize, renderer=self)
    655 dpi = self.points_to_pixels(72)
    656 if ismath:

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/texmanager.py:363](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/texmanager.py#line=362), in TexManager.get_text_width_height_descent(cls, tex, fontsize, renderer)
    361 if tex.strip() == '':
    362     return 0, 0, 0
--> 363 dvifile = cls.make_dvi(tex, fontsize)
    364 dpi_fraction = renderer.points_to_pixels(1.) if renderer else 1
    365 with dviread.Dvi(dvifile, 72 * dpi_fraction) as dvi:

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/texmanager.py:295](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/texmanager.py#line=294), in TexManager.make_dvi(cls, tex, fontsize)
    293     with TemporaryDirectory(dir=cwd) as tmpdir:
    294         tmppath = Path(tmpdir)
--> 295         cls._run_checked_subprocess(
    296             ["latex", "-interaction=nonstopmode", "--halt-on-error",
    297              f"--output-directory={tmppath.name}",
    298              f"{texfile.name}"], tex, cwd=cwd)
    299         (tmppath [/](http://localhost:8888/) Path(dvifile).name).replace(dvifile)
    300 return dvifile

File [~/mambaforge/lib/python3.11/site-packages/matplotlib/texmanager.py:258](http://localhost:8888/mambaforge/lib/python3.11/site-packages/matplotlib/texmanager.py#line=257), in TexManager._run_checked_subprocess(cls, command, tex, cwd)
    254     raise RuntimeError(
    255         f'Failed to process string with tex because {command[0]} '
    256         'could not be found') from exc
    257 except subprocess.CalledProcessError as exc:
--> 258     raise RuntimeError(
    259         '{prog} was not able to process the following string:\n'
    260         '{tex!r}\n\n'
    261         'Here is the full command invocation and its output:\n\n'
    262         '{format_command}\n\n'
    263         '{exc}\n\n'.format(
    264             prog=command[0],
    265             format_command=cbook._pformat_subprocess(command),
    266             tex=tex.encode('unicode_escape'),
    267             exc=exc.output.decode('utf-8', 'backslashreplace'))
    268         ) from None
    269 _log.debug(report)
    270 return report

RuntimeError: latex was not able to process the following string:
b'unicode text: \\u044f, \\u03c8, \\u20ac, \\xfc'

Here is the full command invocation and its output:

latex -interaction=nonstopmode --halt-on-error --output-directory=tmp0lcpl6of 077a9af4443e140dcb75f16b8d670c44.tex

This is pdfTeX, Version 3.141592653-2.6-1.40.26 (TeX Live 2024[/Arch](http://localhost:8888/Arch) Linux) (preloaded format=latex)
 restricted \write18 enabled.
entering extended mode
(./077a9af4443e140dcb75f16b8d670c44.tex
LaTeX2e <2023-11-01> patch level 1
L3 programming layer <2024-02-20>
([/usr/share/texmf-dist/tex/latex/base/article.cls](http://localhost:8888/usr/share/texmf-dist/tex/latex/base/article.cls)
Document Class: article 2023[/05/17](http://localhost:8888/05/17) v1.4n Standard LaTeX document class
([/usr/share/texmf-dist/tex/latex/base/size10.clo](http://localhost:8888/usr/share/texmf-dist/tex/latex/base/size10.clo)))
([/usr/share/texmf-dist/tex/latex/type1cm/type1cm.sty](http://localhost:8888/usr/share/texmf-dist/tex/latex/type1cm/type1cm.sty))
([/usr/share/texmf-dist/tex/latex/cm-super/type1ec.sty](http://localhost:8888/usr/share/texmf-dist/tex/latex/cm-super/type1ec.sty)
([/usr/share/texmf-dist/tex/latex/base/t1cmr.fd](http://localhost:8888/usr/share/texmf-dist/tex/latex/base/t1cmr.fd)))
([/usr/share/texmf-dist/tex/latex/base/inputenc.sty](http://localhost:8888/usr/share/texmf-dist/tex/latex/base/inputenc.sty))
([/usr/share/texmf-dist/tex/latex/geometry/geometry.sty](http://localhost:8888/usr/share/texmf-dist/tex/latex/geometry/geometry.sty)
([/usr/share/texmf-dist/tex/latex/graphics/keyval.sty](http://localhost:8888/usr/share/texmf-dist/tex/latex/graphics/keyval.sty))
([/usr/share/texmf-dist/tex/generic/iftex/ifvtex.sty](http://localhost:8888/usr/share/texmf-dist/tex/generic/iftex/ifvtex.sty)
([/usr/share/texmf-dist/tex/generic/iftex/iftex.sty](http://localhost:8888/usr/share/texmf-dist/tex/generic/iftex/iftex.sty))))
([/usr/share/texmf-dist/tex/latex/underscore/underscore.sty](http://localhost:8888/usr/share/texmf-dist/tex/latex/underscore/underscore.sty))
([/usr/share/texmf-dist/tex/latex/firstaid/underscore-ltx.sty](http://localhost:8888/usr/share/texmf-dist/tex/latex/firstaid/underscore-ltx.sty))
([/usr/share/texmf-dist/tex/latex/base/textcomp.sty](http://localhost:8888/usr/share/texmf-dist/tex/latex/base/textcomp.sty))
([/usr/share/texmf-dist/tex/latex/l3backend/l3backend-dvips.def](http://localhost:8888/usr/share/texmf-dist/tex/latex/l3backend/l3backend-dvips.def))
No file 077a9af4443e140dcb75f16b8d670c44.aux.
*geometry* driver: auto-detecting
*geometry* detected driver: dvips

! LaTeX Error: Unicode character я (U+044F)
               not set up for use with LaTeX.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
                                                  
l.29 {\rmfamily unicode text: я
                                , ψ, €, ü}%
No pages of output.
Transcript written on tmp0lcpl6of[/077a9af4443e140dcb75f16b8d670c44.log.](http://localhost:8888/077a9af4443e140dcb75f16b8d670c44.log.)
```

</details>

### Expected outcome

It should use `xelatex` and works like `mpl.use("pgf")`, and then display the plot under the cell.
This works:
```python
"""
============
PGF preamble
============
"""

import matplotlib as mpl
import matplotlib.pyplot as plt

mpl.use("pgf")
plt.rcParams.update(
    {
        "font.family": "serif",  # use serif/main font for text elements
        "text.usetex": True,  # use inline math for ticks
        "pgf.rcfonts": False,  # don't setup fonts from rc parameters
        "pgf.preamble": "\n".join(
            [
                r"\usepackage{url}",  # load additional packages
                r"\usepackage{unicode-math}",  # unicode math setup
                r"\setmainfont{DejaVu Serif}",  # serif font via preamble
            ]
        ),
    }
)

fig, ax = plt.subplots(figsize=(4.5, 2.5))

ax.plot(range(5))

ax.set_xlabel("unicode text: я, ψ, €, ü")
ax.set_ylabel(r"\url{https://matplotlib.org}")
ax.legend(["unicode math: $λ=∑_i^∞ μ_i^2$"])

fig.tight_layout(pad=0.5)

%matplotlib inline  # magic code works as expect!
plt.show()
```

### Additional information

_No response_

### Operating system

Arch

### Matplotlib Version

3.8.4

### Matplotlib Backend

module://matplotlib_inline.backend_inline

### Python version

3.11.8

### Jupyter version

4.1.6

### Installation

conda

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[Bug]: `FigureCanvasPgf` does not use `xelatex` #28084

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Uh oh!

[Bug]: FigureCanvasPgf does not use xelatex #28084

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Expected outcome

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Operating system

Matplotlib Version

Matplotlib Backend

Python version

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Installation

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[Bug]: `FigureCanvasPgf` does not use `xelatex` #28084