Apr 17, 2025 · Apr 17, 2025
diff --git a/lib/matplotlib/backends/backend_pdf.py b/lib/matplotlib/backends/backend_pdf.py

        tex_font_map = dviread.PsfontsMap(dviread.find_tex_file('pdftex.map'))
        psfont = tex_font_map[dvifont.texname]
        if psfont.filename is None:
            raise ValueError(
                "No usable font file found for {} (TeX: {}); "
                "the font may lack a Type-1 version"
                .format(psfont.psname, dvifont.texname))

        pdfname = next(self._internal_font_seq)
        _log.debug('Assigning font %s = %s (dvi)', pdfname, dvifont.texname)
        self._dviFontInfo[dvifont.texname] = types.SimpleNamespace(
            dvifont=dvifont,
            pdfname=pdfname,
            fontfile=psfont.filename,
            fontfile=str(dvifont.path),  # raises ValueError ifpsfont.filename is None.
            basefont=psfont.psname,
            encodingfile=psfont.encoding,
            effects=psfont.effects)

        # Widths
        widthsObject = self.reserveObject('font widths')
 tfm = fontinfo.dvifont._tfm
 font_metrics = fontinfo.dvifont._metrics
        # convert from TeX's 12.20 representation to 1/1000 text space units.
        widths = [(1000 *metrics.tex_width) >> 20
                  if (metrics :=tfm.get_metrics(char)) else 0
                  for char in range(max(tfm._glyph_metrics, default=-1) + 1)]
        widths = [(1000 *glyph_metrics.tex_width) >> 20
                  if (glyph_metrics :=font_metrics.get_metrics(char)) else 0
                  for char in range(max(font_metrics._glyph_metrics, default=-1) + 1)]
        self.writeObject(widthsObject, widths)

        # Font dictionary
diff --git a/lib/matplotlib/cbook.py b/lib/matplotlib/cbook.py
    users and result in incorrect tracebacks.
    """

    def __init__(self, cls, *args):
    def __init__(self, cls, *args, notes=None):
        self._cls = cls
        self._args = args
        self._notes = notes if notes is not None else []

    @classmethod
    def from_exception(cls, exc):
        return cls(type(exc), *exc.args)
        return cls(type(exc), *exc.args, notes=getattr(exc, "__notes__", []))

    def to_exception(self):
        return self._cls(*self._args)
        exc = self._cls(*self._args)
        for note in self._notes:
            exc.add_note(note)
        return exc


 def _get_running_interactive_framework():
Original file line number	Diff line number	Diff line change
Expand Up		@@ -940,18 +940,12 @@ def dviFontName(self, dvifont):

		tex_font_map = dviread.PsfontsMap(dviread.find_tex_file('pdftex.map'))
		psfont = tex_font_map[dvifont.texname]
		if psfont.filename is None:
		raise ValueError(
		"No usable font file found for {} (TeX: {}); "
		"the font may lack a Type-1 version"
		.format(psfont.psname, dvifont.texname))

		pdfname = next(self._internal_font_seq)
		_log.debug('Assigning font %s = %s (dvi)', pdfname, dvifont.texname)
		self._dviFontInfo[dvifont.texname] = types.SimpleNamespace(
		dvifont=dvifont,
		pdfname=pdfname,
		fontfile=psfont.filename,
		fontfile=str(dvifont.path), # raises ValueError ifpsfont.filename is None.
		basefont=psfont.psname,
		encodingfile=psfont.encoding,
		effects=psfont.effects)
Expand DownExpand Up		@@ -996,11 +990,11 @@ def _embedTeXFont(self, fontinfo):

		# Widths
		widthsObject = self.reserveObject('font widths')
		tfm = fontinfo.dvifont._tfm
		font_metrics = fontinfo.dvifont._metrics
		# convert from TeX's 12.20 representation to 1/1000 text space units.
		widths = [(1000 *metrics.tex_width) >> 20
		if (metrics :=tfm.get_metrics(char)) else 0
		for char in range(max(tfm._glyph_metrics, default=-1) + 1)]
		widths = [(1000 *glyph_metrics.tex_width) >> 20
		if (glyph_metrics :=font_metrics.get_metrics(char)) else 0
		for char in range(max(font_metrics._glyph_metrics, default=-1) + 1)]
		self.writeObject(widthsObject, widths)

		# Font dictionary
Expand Down
Original file line number	Diff line number	Diff line change
Expand Up		@@ -43,16 +43,20 @@ class _ExceptionInfo:
		users and result in incorrect tracebacks.
		"""

		def __init__(self, cls, *args):
		def __init__(self, cls, *args, notes=None):
		self._cls = cls
		self._args = args
		self._notes = notes if notes is not None else []

		@classmethod
		def from_exception(cls, exc):
		return cls(type(exc), *exc.args)
		return cls(type(exc), *exc.args, notes=getattr(exc, "__notes__", []))

		def to_exception(self):
		return self._cls(*self._args)
		exc = self._cls(*self._args)
		for note in self._notes:
		exc.add_note(note)
		return exc


		def _get_running_interactive_framework():
Expand Down