---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
File ~/abc/.venv/lib/python3.13/site-packages/matplotlib/markers.py:326, in MarkerStyle._set_marker(self, marker)
    325 try:
--> 326     Path(marker)
    327     self._marker_function = self._set_vertices

File ~/abc/.venv/lib/python3.13/site-packages/matplotlib/path.py:130, in Path.__init__(self, vertices, codes, _interpolation_steps, closed, readonly)
    129 vertices = _to_unmasked_float_array(vertices)
--> 130 _api.check_shape((None, 2), vertices=vertices)
    132 if codes is not None and len(vertices):

File ~/abc/.venv/lib/python3.13/site-packages/matplotlib/_api/__init__.py:162, in check_shape(shape, **kwargs)
    160     text_shape += ","
--> 162 raise ValueError(
    163     f"{k!r} must be {len(shape)}D with shape ({text_shape}), "
    164     f"but your input has shape {v.shape}"
    165 )

ValueError: 'vertices' must be 2D with shape (N, 2), but your input has shape ()

The above exception was the direct cause of the following exception:

ValueError                                Traceback (most recent call last)
Cell In[5], line 1
----> 1 plt.plot([1, 2, 3], marker=caretleft2)

File ~/abc/.venv/lib/python3.13/site-packages/matplotlib/pyplot.py:3838, in plot(scalex, scaley, data, *args, **kwargs)
   3830 @_copy_docstring_and_deprecators(Axes.plot)
   3831 def plot(
   3832     *args: float | ArrayLike | str,
   (...)   3836     **kwargs,
   3837 ) -> list[Line2D]:
-> 3838     return gca().plot(
   3839         *args,
   3840         scalex=scalex,
   3841         scaley=scaley,
   3842         **({"data": data} if data is not None else {}),
   3843         **kwargs,
   3844     )

File ~/abc/.venv/lib/python3.13/site-packages/matplotlib/axes/_axes.py:1777, in Axes.plot(self, scalex, scaley, data, *args, **kwargs)
   1534 """
   1535 Plot y versus x as lines and/or markers.
   1536 
   (...)   1774 (``'green'``) or hex strings (``'#008000'``).
   1775 """
   1776 kwargs = cbook.normalize_kwargs(kwargs, mlines.Line2D)
-> 1777 lines = [*self._get_lines(self, *args, data=data, **kwargs)]
   1778 for line in lines:
   1779     self.add_line(line)

File ~/abc/.venv/lib/python3.13/site-packages/matplotlib/axes/_base.py:297, in _process_plot_var_args.__call__(self, axes, data, return_kwargs, *args, **kwargs)
    295     this += args[0],
    296     args = args[1:]
--> 297 yield from self._plot_args(
    298     axes, this, kwargs, ambiguous_fmt_datakey=ambiguous_fmt_datakey,
    299     return_kwargs=return_kwargs
    300 )

File ~/abc/.venv/lib/python3.13/site-packages/matplotlib/axes/_base.py:546, in _process_plot_var_args._plot_args(self, axes, tup, kwargs, return_kwargs, ambiguous_fmt_datakey)
    544     return list(result)
    545 else:
--> 546     return [l[0] for l in result]

File ~/abc/.venv/lib/python3.13/site-packages/matplotlib/axes/_base.py:539, in <genexpr>(.0)
    534 else:
    535     raise ValueError(
    536         f"label must be scalar or have the same length as the input "
    537         f"data, but found {len(label)} for {n_datasets} datasets.")
--> 539 result = (make_artist(axes, x[:, j % ncx], y[:, j % ncy], kw,
    540                       {**kwargs, 'label': label})
    541           for j, label in enumerate(labels))
    543 if return_kwargs:
    544     return list(result)

File ~/abc/.venv/lib/python3.13/site-packages/matplotlib/axes/_base.py:338, in _process_plot_var_args._make_line(self, axes, x, y, kw, kwargs)
    336 kw = {**kw, **kwargs}  # Don't modify the original kw.
    337 self._setdefaults(self._getdefaults(kw), kw)
--> 338 seg = mlines.Line2D(x, y, **kw)
    339 return seg, kw

File ~/abc/.venv/lib/python3.13/site-packages/matplotlib/lines.py:394, in Line2D.__init__(self, xdata, ydata, linewidth, linestyle, color, gapcolor, marker, markersize, markeredgewidth, markeredgecolor, markerfacecolor, markerfacecoloralt, fillstyle, antialiased, dash_capstyle, solid_capstyle, dash_joinstyle, solid_joinstyle, pickradius, drawstyle, markevery, **kwargs)
    392     marker = 'none'  # Default.
    393 if not isinstance(marker, MarkerStyle):
--> 394     self._marker = MarkerStyle(marker, fillstyle)
    395 else:
    396     self._marker = marker

File ~/abc/.venv/lib/python3.13/site-packages/matplotlib/markers.py:248, in MarkerStyle.__init__(self, marker, fillstyle, transform, capstyle, joinstyle)
    246 self._user_joinstyle = JoinStyle(joinstyle) if joinstyle is not None else None
    247 self._set_fillstyle(fillstyle)
--> 248 self._set_marker(marker)

File ~/abc/.venv/lib/python3.13/site-packages/matplotlib/markers.py:329, in MarkerStyle._set_marker(self, marker)
    327         self._marker_function = self._set_vertices
    328     except ValueError as err:
--> 329         raise ValueError(
    330             f'Unrecognized marker style {marker!r}') from err
    332 if not isinstance(marker, MarkerStyle):
    333     self._marker = marker

ValueError: Unrecognized marker style np.int64(4)