How to render Matplotlib plots with TEX code in Cyrillic - matplotlib

Question

I'm trying to understand how to plot figures with Cyrillic text in the legend.
It seems that axes display TeX characters but text in the legend is using the default font. Here is the code:
import numpy as np
import matplotlib
matplotlib.use("pgf")
import matplotlib.pyplot as plt
matplotlib.rcParams['text.usetex'] = True
%matplotlib inline
x = np.linspace(-np.pi, np.pi, 256)
y = []
for i in range(-100, 100):
y += [np.cos(x + i)]
plt.xlim(-10, 10)
plt.ylim(-2, 2)
plt.xticks([-10, 0, 10])
plt.yticks()
plt.plot(x, y[0], color = 'red', linewidth = 2.5, linestyle = '-', label = 'style1')
plt.plot(x, y[1], color = 'blue', linewidth = 3, linestyle = '-', label = 'style2')
plt.legend()
Changing the label of the first (the red) line to something in cyrillic:
plt.plot(x, y[0], color = 'red', linewidth = 2.5, linestyle = '-', label = 'стил1')
gives the following error:
Error in callback .post_execute at 0x00000202EDCA3AF8> (for post_execute):
---------------------------------------------------------------------------
CalledProcessError Traceback (most recent call last)
~\anaconda3\lib\site-packages\matplotlib\texmanager.py in _run_checked_subprocess(self, command, tex)
303 cwd=self.texcache,
--> 304 stderr=subprocess.STDOUT)
305 except FileNotFoundError as exc:
~\anaconda3\lib\subprocess.py in check_output(timeout, *popenargs, **kwargs)
410 return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
--> 411 **kwargs).stdout
412
~\anaconda3\lib\subprocess.py in run(input, capture_output, timeout, check, *popenargs, **kwargs)
511 raise CalledProcessError(retcode, process.args,
--> 512 output=stdout, stderr=stderr)
513 return CompletedProcess(process.args, retcode, stdout, stderr)
CalledProcessError: Command '['latex', '-interaction=nonstopmode', '--halt-on-error', 'C:\\Users\\Victor\\.matplotlib\\tex.cache\\b6f49bb15be8eba85bb671cfafccfb49.tex']' returned non-zero exit status 1.
The above exception was the direct cause of the following exception:
RuntimeError Traceback (most recent call last)
~\anaconda3\lib\site-packages\matplotlib\pyplot.py in post_execute()
107 def post_execute():
108 if matplotlib.is_interactive():
--> 109 draw_all()
110
111 # IPython >= 2
~\anaconda3\lib\site-packages\matplotlib\_pylab_helpers.py in draw_all(cls, force)
126 for f_mgr in cls.get_all_fig_managers():
127 if force or f_mgr.canvas.figure.stale:
--> 128 f_mgr.canvas.draw_idle()
129
130 atexit.register(Gcf.destroy_all)
~\anaconda3\lib\site-packages\matplotlib\backend_bases.py in draw_idle(self, *args, **kwargs)
1914 if not self._is_idle_drawing:
1915 with self._idle_draw_cntx():
-> 1916 self.draw(*args, **kwargs)
1917
1918 def draw_cursor(self, event):
~\anaconda3\lib\site-packages\matplotlib\backends\backend_agg.py in draw(self)
386 self.renderer = self.get_renderer(cleared=True)
387 with RendererAgg.lock:
--> 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.
~\anaconda3\lib\site-packages\matplotlib\artist.py in draw_wrapper(artist, renderer, *args, **kwargs)
36 renderer.start_filter()
37
---> 38 return draw(artist, renderer, *args, **kwargs)
39 finally:
40 if artist.get_agg_filter() is not None:
~\anaconda3\lib\site-packages\matplotlib\figure.py in draw(self, renderer)
1707 self.patch.draw(renderer)
1708 mimage._draw_list_compositing_images(
-> 1709 renderer, self, artists, self.suppressComposite)
1710
1711 renderer.close_group('figure')
~\anaconda3\lib\site-packages\matplotlib\image.py in _draw_list_compositing_images(renderer, parent, artists, suppress_composite)
133 if not_composite or not has_images:
134 for a in artists:
--> 135 a.draw(renderer)
136 else:
137 # Composite any adjacent images together
~\anaconda3\lib\site-packages\matplotlib\artist.py in draw_wrapper(artist, renderer, *args, **kwargs)
36 renderer.start_filter()
37
---> 38 return draw(artist, renderer, *args, **kwargs)
39 finally:
40 if artist.get_agg_filter() is not None:
~\anaconda3\lib\site-packages\matplotlib\axes\_base.py in draw(self, renderer, inframe)
2645 renderer.stop_rasterizing()
2646
-> 2647 mimage._draw_list_compositing_images(renderer, self, artists)
2648
2649 renderer.close_group('axes')
~\anaconda3\lib\site-packages\matplotlib\image.py in _draw_list_compositing_images(renderer, parent, artists, suppress_composite)
133 if not_composite or not has_images:
134 for a in artists:
--> 135 a.draw(renderer)
136 else:
137 # Composite any adjacent images together
~\anaconda3\lib\site-packages\matplotlib\artist.py in draw_wrapper(artist, renderer, *args, **kwargs)
36 renderer.start_filter()
37
---> 38 return draw(artist, renderer, *args, **kwargs)
39 finally:
40 if artist.get_agg_filter() is not None:
~\anaconda3\lib\site-packages\matplotlib\legend.py in draw(self, renderer)
656 # update the location and size of the legend. This needs to
657 # be done in any case to clip the figure right.
--> 658 bbox = self._legend_box.get_window_extent(renderer)
659 self.legendPatch.set_bounds(bbox.x0, bbox.y0,
660 bbox.width, bbox.height)
...
~\anaconda3\lib\site-packages\matplotlib\offsetbox.py in get_extent_offsets(self, renderer)
491
492 whd_list = [c.get_extent(renderer)
--> 493 for c in self.get_visible_children()]
494
495 if not whd_list:
~\anaconda3\lib\site-packages\matplotlib\offsetbox.py in <listcomp>(.0)
491
492 whd_list = [c.get_extent(renderer)
--> 493 for c in self.get_visible_children()]
494
495 if not whd_list:
~\anaconda3\lib\site-packages\matplotlib\offsetbox.py in get_extent(self, renderer)
284 def get_extent(self, renderer):
285 """Return a tuple ``width, height, xdescent, ydescent`` of the box."""
--> 286 w, h, xd, yd, offsets = self.get_extent_offsets(renderer)
287 return w, h, xd, yd
288
~\anaconda3\lib\site-packages\matplotlib\offsetbox.py in get_extent_offsets(self, renderer)
417
418 whd_list = [c.get_extent(renderer)
--> 419 for c in self.get_visible_children()]
420 whd_list = [(w, h, xd, (h - yd)) for w, h, xd, yd in whd_list]
421
~\anaconda3\lib\site-packages\matplotlib\offsetbox.py in <listcomp>(.0)
417
418 whd_list = [c.get_extent(renderer)
--> 419 for c in self.get_visible_children()]
420 whd_list = [(w, h, xd, (h - yd)) for w, h, xd, yd in whd_list]
421
~\anaconda3\lib\site-packages\matplotlib\offsetbox.py in get_extent(self, renderer)
284 def get_extent(self, renderer):
285 """Return a tuple ``width, height, xdescent, ydescent`` of the box."""
--> 286 w, h, xd, yd, offsets = self.get_extent_offsets(renderer)
287 return w, h, xd, yd
288
~\anaconda3\lib\site-packages\matplotlib\offsetbox.py in get_extent_offsets(self, renderer)
491
492 whd_list = [c.get_extent(renderer)
--> 493 for c in self.get_visible_children()]
494
495 if not whd_list:
~\anaconda3\lib\site-packages\matplotlib\offsetbox.py in <listcomp>(.0)
491
492 whd_list = [c.get_extent(renderer)
--> 493 for c in self.get_visible_children()]
494
495 if not whd_list:
~\anaconda3\lib\site-packages\matplotlib\offsetbox.py in get_extent(self, renderer)
875 "lp", self._text._fontproperties, ismath=False)
876
--> 877 bbox, info, d = self._text._get_layout(renderer)
878 w, h = bbox.width, bbox.height
879
~\anaconda3\lib\site-packages\matplotlib\text.py in _get_layout(self, renderer)
296 if clean_line:
297 w, h, d = renderer.get_text_width_height_descent(
--> 298 clean_line, self._fontproperties, ismath=ismath)
299 else:
300 w = h = d = 0
~\anaconda3\lib\site-packages\matplotlib\backends\backend_agg.py in get_text_width_height_descent(self, s, prop, ismath)
199 fontsize = prop.get_size_in_points()
200 w, h, d = texmanager.get_text_width_height_descent(
--> 201 s, fontsize, renderer=self)
202 return w, h, d
203
~\anaconda3\lib\site-packages\matplotlib\texmanager.py in get_text_width_height_descent(self, tex, fontsize, renderer)
446 else:
447 # use dviread. It sometimes returns a wrong descent.
--> 448 dvifile = self.make_dvi(tex, fontsize)
449 with dviread.Dvi(dvifile, 72 * dpi_fraction) as dvi:
450 page, = dvi
~\anaconda3\lib\site-packages\matplotlib\texmanager.py in make_dvi(self, tex, fontsize)
336 self._run_checked_subprocess(
337 ["latex", "-interaction=nonstopmode", "--halt-on-error",
--> 338 texfile], tex)
339 for fname in glob.glob(basefile + '*'):
340 if not fname.endswith(('dvi', 'tex')):
~\anaconda3\lib\site-packages\matplotlib\texmanager.py in _run_checked_subprocess(self, command, tex)
315 prog=command[0],
316 tex=tex.encode('unicode_escape'),
--> 317 exc=exc.output.decode('utf-8'))) from exc
318 _log.debug(report)
319 return report
RuntimeError: latex was not able to process the following string:
b'\\u0441\\u0442\\u0438\\u043b1'
Here is the full report generated by latex:
This is pdfTeX, Version 3.14159265-2.6-1.40.20 (TeX Live 2019/W32TeX) (preloaded format=latex)
restricted \write18 enabled.
entering extended mode
(c:/Users/Victor/.matplotlib/tex.cache/b6f49bb15be8eba85bb671cfafccfb49.tex
LaTeX2e <2020-02-02> patch level 5
L3 programming layer <2020-02-25>
(c:/texlive/2019/texmf-dist/tex/latex/base/article.cls
Document Class: article 2019/12/20 v1.4l Standard LaTeX document class
(c:/texlive/2019/texmf-dist/tex/latex/base/size10.clo))
(c:/texlive/2019/texmf-dist/tex/latex/type1cm/type1cm.sty)
(c:/texlive/2019/texmf-dist/tex/latex/base/textcomp.sty)
(c:/texlive/2019/texmf-dist/tex/latex/base/inputenc.sty)
(c:/texlive/2019/texmf-dist/tex/latex/geometry/geometry.sty
(c:/texlive/2019/texmf-dist/tex/latex/graphics/keyval.sty)
(c:/texlive/2019/texmf-dist/tex/generic/iftex/ifvtex.sty
(c:/texlive/2019/texmf-dist/tex/generic/iftex/iftex.sty))
Package geometry Warning: Over-specification in `h'-direction.
`width' (5058.9pt) is ignored.
Package geometry Warning: Over-specification in `v'-direction.
`height' (5058.9pt) is ignored.
) (c:/texlive/2019/texmf-dist/tex/latex/l3backend/l3backend-dvips.def)
(./b6f49bb15be8eba85bb671cfafccfb49.aux)
*geometry* driver: auto-detecting
*geometry* detected driver: dvips
! Package inputenc Error: Unicode character с (U+0441)
(inputenc) not set up for use with LaTeX.
See the inputenc package documentation for explanation.
Type H <return> for immediate help.
...
l.14 \fontsize{10.000000}{12.500000}{\sffamily с
тил1}
No pages of output.
Transcript written on b6f49bb15be8eba85bb671cfafccfb49.log.
---------------------------------------------------------------------------
CalledProcessError Traceback (most recent call last)
~\anaconda3\lib\site-packages\matplotlib\texmanager.py in _run_checked_subprocess(self, command, tex)
303 cwd=self.texcache,
--> 304 stderr=subprocess.STDOUT)
305 except FileNotFoundError as exc:
~\anaconda3\lib\subprocess.py in check_output(timeout, *popenargs, **kwargs)
410 return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
--> 411 **kwargs).stdout
412
~\anaconda3\lib\subprocess.py in run(input, capture_output, timeout, check, *popenargs, **kwargs)
511 raise CalledProcessError(retcode, process.args,
--> 512 output=stdout, stderr=stderr)
513 return CompletedProcess(process.args, retcode, stdout, stderr)
CalledProcessError: Command '['latex', '-interaction=nonstopmode', '--halt-on-error', 'C:\\Users\\Victor\\.matplotlib\\tex.cache\\b6f49bb15be8eba85bb671cfafccfb49.tex']' returned non-zero exit status 1.
The above exception was the direct cause of the following exception:
RuntimeError Traceback (most recent call last)
~\anaconda3\lib\site-packages\IPython\core\formatters.py in __call__(self, obj)
339 pass
340 else:
--> 341 return printer(obj)
342 # Finally look for special method names
343 method = get_real_method(obj, self.print_method)
~\anaconda3\lib\site-packages\IPython\core\pylabtools.py in <lambda>(fig)
246
247 if 'png' in formats:
--> 248 png_formatter.for_type(Figure, lambda fig: print_figure(fig, 'png', **kwargs))
249 if 'retina' in formats or 'png2x' in formats:
250 png_formatter.for_type(Figure, lambda fig: retina_figure(fig, **kwargs))
~\anaconda3\lib\site-packages\IPython\core\pylabtools.py in print_figure(fig, fmt, bbox_inches, **kwargs)
130 FigureCanvasBase(fig)
131
--> 132 fig.canvas.print_figure(bytes_io, **kw)
133 data = bytes_io.getvalue()
134 if fmt == 'svg':
~\anaconda3\lib\site-packages\matplotlib\backend_bases.py in print_figure(self, filename, dpi, facecolor, edgecolor, orientation, format, bbox_inches, **kwargs)
2063 orientation=orientation,
2064 dryrun=True,
-> 2065 **kwargs)
2066 renderer = self.figure._cachedRenderer
2067 bbox_artists = kwargs.pop("bbox_extra_artists", None)
~\anaconda3\lib\site-packages\matplotlib\backends\backend_agg.py in print_png(self, filename_or_obj, metadata, pil_kwargs, *args, **kwargs)
525
526 else:
--> 527 FigureCanvasAgg.draw(self)
528 renderer = self.get_renderer()
529 with cbook._setattr_cm(renderer, dpi=self.figure.dpi), \
~\anaconda3\lib\site-packages\matplotlib\backends\backend_agg.py in draw(self)
386 self.renderer = self.get_renderer(cleared=True)
387 with RendererAgg.lock:
--> 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.
~\anaconda3\lib\site-packages\matplotlib\artist.py in draw_wrapper(artist, renderer, *args, **kwargs)
36 renderer.start_filter()
37
---> 38 return draw(artist, renderer, *args, **kwargs)
39 finally:
40 if artist.get_agg_filter() is not None:
~\anaconda3\lib\site-packages\matplotlib\figure.py in draw(self, renderer)
1707 self.patch.draw(renderer)
1708 mimage._draw_list_compositing_images(
-> 1709 renderer, self, artists, self.suppressComposite)
1710
1711 renderer.close_group('figure')
~\anaconda3\lib\site-packages\matplotlib\image.py in _draw_list_compositing_images(renderer, parent, artists, suppress_composite)
133 if not_composite or not has_images:
134 for a in artists:
--> 135 a.draw(renderer)
136 else:
137 # Composite any adjacent images together
~\anaconda3\lib\site-packages\matplotlib\artist.py in draw_wrapper(artist, renderer, *args, **kwargs)
36 renderer.start_filter()
37
---> 38 return draw(artist, renderer, *args, **kwargs)
39 finally:
40 if artist.get_agg_filter() is not None:
~\anaconda3\lib\site-packages\matplotlib\axes\_base.py in draw(self, renderer, inframe)
2645 renderer.stop_rasterizing()
2646
-> 2647 mimage._draw_list_compositing_images(renderer, self, artists)
2648
2649 renderer.close_group('axes')
~\anaconda3\lib\site-packages\matplotlib\image.py in _draw_list_compositing_images(renderer, parent, artists, suppress_composite)
133 if not_composite or not has_images:
134 for a in artists:
--> 135 a.draw(renderer)
136 else:
137 # Composite any adjacent images together
~\anaconda3\lib\site-packages\matplotlib\artist.py in draw_wrapper(artist, renderer, *args, **kwargs)
36 renderer.start_filter()
37
---> 38 return draw(artist, renderer, *args, **kwargs)
39 finally:
40 if artist.get_agg_filter() is not None:
~\anaconda3\lib\site-packages\matplotlib\legend.py in draw(self, renderer)
656 # update the location and size of the legend. This needs to
657 # be done in any case to clip the figure right.
--> 658 bbox = self._legend_box.get_window_extent(renderer)
659 self.legendPatch.set_bounds(bbox.x0, bbox.y0,
660 bbox.width, bbox.height)
~\anaconda3\lib\site-packages\matplotlib\offsetbox.py in get_window_extent(self, renderer)
289 def get_window_extent(self, renderer):
290 """Return the bounding box (`.Bbox`) in display space."""
--> 291 w, h, xd, yd, offsets = self.get_extent_offsets(renderer)
292 px, py = self.get_offset(w, h, xd, yd, renderer)
293 return mtransforms.Bbox.from_bounds(px - xd, py - yd, w, h)
~\anaconda3\lib\site-packages\matplotlib\offsetbox.py in get_extent_offsets(self, renderer)
417
418 whd_list = [c.get_extent(renderer)
--> 419 for c in self.get_visible_children()]
420 whd_list = [(w, h, xd, (h - yd)) for w, h, xd, yd in whd_list]
421
~\anaconda3\lib\site-packages\matplotlib\offsetbox.py in <listcomp>(.0)
417
418 whd_list = [c.get_extent(renderer)
--> 419 for c in self.get_visible_children()]
420 whd_list = [(w, h, xd, (h - yd)) for w, h, xd, yd in whd_list]
421
~\anaconda3\lib\site-packages\matplotlib\offsetbox.py in get_extent(self, renderer)
284 def get_extent(self, renderer):
285 """Return a tuple ``width, height, xdescent, ydescent`` of the box."""
--> 286 w, h, xd, yd, offsets = self.get_extent_offsets(renderer)
287 return w, h, xd, yd
288
~\anaconda3\lib\site-packages\matplotlib\offsetbox.py in get_extent_offsets(self, renderer)
491
492 whd_list = [c.get_extent(renderer)
--> 493 for c in self.get_visible_children()]
494
495 if not whd_list:
~\anaconda3\lib\site-packages\matplotlib\offsetbox.py in <listcomp>(.0)
491
492 whd_list = [c.get_extent(renderer)
--> 493 for c in self.get_visible_children()]
494
495 if not whd_list:
~\anaconda3\lib\site-packages\matplotlib\offsetbox.py in get_extent(self, renderer)
284 def get_extent(self, renderer):
285 """Return a tuple ``width, height, xdescent, ydescent`` of the box."""
--> 286 w, h, xd, yd, offsets = self.get_extent_offsets(renderer)
287 return w, h, xd, yd
288
~\anaconda3\lib\site-packages\matplotlib\offsetbox.py in get_extent_offsets(self, renderer)
417
418 whd_list = [c.get_extent(renderer)
--> 419 for c in self.get_visible_children()]
420 whd_list = [(w, h, xd, (h - yd)) for w, h, xd, yd in whd_list]
421
~\anaconda3\lib\site-packages\matplotlib\offsetbox.py in <listcomp>(.0)
417
418 whd_list = [c.get_extent(renderer)
--> 419 for c in self.get_visible_children()]
420 whd_list = [(w, h, xd, (h - yd)) for w, h, xd, yd in whd_list]
421
~\anaconda3\lib\site-packages\matplotlib\offsetbox.py in get_extent(self, renderer)
284 def get_extent(self, renderer):
285 """Return a tuple ``width, height, xdescent, ydescent`` of the box."""
--> 286 w, h, xd, yd, offsets = self.get_extent_offsets(renderer)
287 return w, h, xd, yd
288
~\anaconda3\lib\site-packages\matplotlib\offsetbox.py in get_extent_offsets(self, renderer)
491
492 whd_list = [c.get_extent(renderer)
--> 493 for c in self.get_visible_children()]
494
495 if not whd_list:
~\anaconda3\lib\site-packages\matplotlib\offsetbox.py in <listcomp>(.0)
491
492 whd_list = [c.get_extent(renderer)
--> 493 for c in self.get_visible_children()]
494
495 if not whd_list:
~\anaconda3\lib\site-packages\matplotlib\offsetbox.py in get_extent(self, renderer)
875 "lp", self._text._fontproperties, ismath=False)
876
--> 877 bbox, info, d = self._text._get_layout(renderer)
878 w, h = bbox.width, bbox.height
879
~\anaconda3\lib\site-packages\matplotlib\text.py in _get_layout(self, renderer)
296 if clean_line:
297 w, h, d = renderer.get_text_width_height_descent(
--> 298 clean_line, self._fontproperties, ismath=ismath)
299 else:
300 w = h = d = 0
~\anaconda3\lib\site-packages\matplotlib\backends\backend_agg.py in get_text_width_height_descent(self, s, prop, ismath)
199 fontsize = prop.get_size_in_points()
200 w, h, d = texmanager.get_text_width_height_descent(
--> 201 s, fontsize, renderer=self)
202 return w, h, d
203
~\anaconda3\lib\site-packages\matplotlib\texmanager.py in get_text_width_height_descent(self, tex, fontsize, renderer)
446 else:
447 # use dviread. It sometimes returns a wrong descent.
--> 448 dvifile = self.make_dvi(tex, fontsize)
449 with dviread.Dvi(dvifile, 72 * dpi_fraction) as dvi:
450 page, = dvi
~\anaconda3\lib\site-packages\matplotlib\texmanager.py in make_dvi(self, tex, fontsize)
336 self._run_checked_subprocess(
337 ["latex", "-interaction=nonstopmode", "--halt-on-error",
--> 338 texfile], tex)
339 for fname in glob.glob(basefile + '*'):
340 if not fname.endswith(('dvi', 'tex')):
~\anaconda3\lib\site-packages\matplotlib\texmanager.py in _run_checked_subprocess(self, command, tex)
315 prog=command[0],
316 tex=tex.encode('unicode_escape'),
--> 317 exc=exc.output.decode('utf-8'))) from exc
318 _log.debug(report)
319 return report
RuntimeError: latex was not able to process the following string:
b'\\u0441\\u0442\\u0438\\u043b1'
Here is the full report generated by latex:
This is pdfTeX, Version 3.14159265-2.6-1.40.20 (TeX Live 2019/W32TeX) (preloaded format=latex)
restricted \write18 enabled.
entering extended mode
(c:/Users/Victor/.matplotlib/tex.cache/b6f49bb15be8eba85bb671cfafccfb49.tex
LaTeX2e <2020-02-02> patch level 5
L3 programming layer <2020-02-25>
(c:/texlive/2019/texmf-dist/tex/latex/base/article.cls
Document Class: article 2019/12/20 v1.4l Standard LaTeX document class
(c:/texlive/2019/texmf-dist/tex/latex/base/size10.clo))
(c:/texlive/2019/texmf-dist/tex/latex/type1cm/type1cm.sty)
(c:/texlive/2019/texmf-dist/tex/latex/base/textcomp.sty)
(c:/texlive/2019/texmf-dist/tex/latex/base/inputenc.sty)
(c:/texlive/2019/texmf-dist/tex/latex/geometry/geometry.sty
(c:/texlive/2019/texmf-dist/tex/latex/graphics/keyval.sty)
(c:/texlive/2019/texmf-dist/tex/generic/iftex/ifvtex.sty
(c:/texlive/2019/texmf-dist/tex/generic/iftex/iftex.sty))
Package geometry Warning: Over-specification in `h'-direction.
`width' (5058.9pt) is ignored.
Package geometry Warning: Over-specification in `v'-direction.
`height' (5058.9pt) is ignored.
) (c:/texlive/2019/texmf-dist/tex/latex/l3backend/l3backend-dvips.def)
(./b6f49bb15be8eba85bb671cfafccfb49.aux)
*geometry* driver: auto-detecting
*geometry* detected driver: dvips
! Package inputenc Error: Unicode character с (U+0441)
(inputenc) not set up for use with LaTeX.
See the inputenc package documentation for explanation.
Type H <return> for immediate help.
...
l.14 \fontsize{10.000000}{12.500000}{\sffamily с
тил1}
No pages of output.
Transcript written on b6f49bb15be8eba85bb671cfafccfb49.log.
Solving this is important for me because I plan to redo a whole project, written using R (a book) in Python.

Answer 1

You need to tell tex that you would like to display some Russian.
# coding: utf-8
import numpy as np
import matplotlib.pyplot as plt
from matplotlib import rc
rc('text', usetex=True)
rc('text.latex',unicode=True)
rc('text.latex',preamble=r'\usepackage[utf8]{inputenc}')
rc('text.latex',preamble=r'\usepackage[russian]{babel}')
x = np.linspace(-np.pi, np.pi, 256)
y = []
for i in range(-100, 100):
y += [np.cos(x + i)]
plt.xlim(-10, 10)
plt.ylim(-2, 2)
plt.xticks([-10, 0, 10])
plt.yticks()
plt.plot(x, y[0], color = 'red', linewidth = 2.5, linestyle = '-', label = 'стил1')
plt.plot(x, y[1], color = 'blue', linewidth = 3, linestyle = '-', label = 'style2')
plt.legend()
plt.show()