AttributeError while using ov.utils.plot_paga

[TamiaChin]

Great tool !

I came across AttributeError while trying to demonstrate the PAGA LTNN-graph on Umap. However, if I do not set parameter basis = "Umap", a trajectory can be showed with nodes and lines.

Below please find my code.

ov.utils.plot_paga(
    adata, 
    size=50, 
    # basis='umap',
    alpha=0.1, 
    title='PAGA LTNN-graph', 
    min_edge_width=2,
    node_size_scale=1.5, 
    show=False, 
    # legend_loc='on data' 
)

while

ov.utils.plot_paga(
    adata, 
    size=50, 
    basis='umap',
    alpha=0.1, 
    title='PAGA LTNN-graph', 
    min_edge_width=2,
    node_size_scale=1.5, 
    show=False, 
    # legend_loc='on data' 
)

An error occurred

---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
Cell In[14], line 1
----> 1 ov.utils.plot_paga(
      2     adata, 
      3     size=50, 
      4     basis='umap',
      5     alpha=0.1,  
      6     title='PAGA LTNN-graph',
      7     min_edge_width=2,  
      8     node_size_scale=1.5, 
      9     show=False, 
     10     legend_loc='on data' 
     11 )

File /data/person/lab/qinty/.conda/envs/pysc/lib/python3.9/site-packages/omicverse/utils/_paga.py:445, in plot_paga(adata, basis, vkey, color, layer, title, threshold, layout, layout_kwds, init_pos, root, labels, single_component, dashed_edges, solid_edges, transitions, node_size_scale, node_size_power, edge_width_scale, min_edge_width, max_edge_width, arrowsize, random_state, pos, node_colors, normalize_to_color, cmap, cax, cb_kwds, add_pos, export_to_gexf, plot, use_raw, size, groups, components, figsize, dpi, show, save, ax, ncols, scatter_flag, **kwargs)
    442     basis = None
    444 import scvelo as scv
--> 445 return scv.pl.paga(adata,
    446 basis=basis,
    447 vkey=vkey,
    448 color=color,
    449 layer=layer,
    450 title=title,
    451 threshold=threshold,
    452 layout=layout,
    453 layout_kwds=layout_kwds,
    454 init_pos=init_pos,
    455 root=root,
    456 labels=labels,
    457 single_component=single_component,
    458 dashed_edges=dashed_edges,
    459 solid_edges=solid_edges,
    460 transitions=transitions,
    461 node_size_scale=node_size_scale,
    462 node_size_power=node_size_power,
    463 edge_width_scale=edge_width_scale,
    464 min_edge_width=min_edge_width,
    465 max_edge_width=max_edge_width,
    466 arrowsize=arrowsize,
    467 random_state=random_state,
    468 pos=pos,
    469 node_colors=node_colors,
    470 normalize_to_color=normalize_to_color,
    471 cmap=cmap,
    472 cax=cax,
    473 cb_kwds=cb_kwds,
    474 add_pos=add_pos,
    475 export_to_gexf=export_to_gexf,
    476 plot=plot,
    477 use_raw=use_raw,
    478 size=size,
    479 groups=groups,
    480 components=components,
    481 figsize=figsize,
    482 dpi=dpi,
    483 show=show,
    484 save=save,
    485 ax=ax,
    486 ncols=ncols,
    487 scatter_flag=scatter_flag,
    488 **kwargs,)

File /data/person/lab/qinty/.conda/envs/pysc/lib/python3.9/site-packages/scvelo/plotting/paga.py:353, in paga(adata, basis, vkey, color, layer, title, threshold, layout, layout_kwds, init_pos, root, labels, single_component, dashed_edges, solid_edges, transitions, node_size_scale, node_size_power, edge_width_scale, min_edge_width, max_edge_width, arrowsize, random_state, pos, node_colors, normalize_to_color, cmap, cax, cb_kwds, add_pos, export_to_gexf, plot, use_raw, size, groups, components, figsize, dpi, show, save, ax, ncols, scatter_flag, **kwargs)
    351     kwargs.update(dict(basis=basis, layer=layer, color=paga_groups, size=size))
    352     kwargs.update(dict(vkey=vkey, title=title, ax=ax, show=False, save=None))
--> 353     ax = scatter(adata, x=x, y=y, zorder=0, **kwargs)
    354 text_kwds = {"zorder": 1000, "alpha": legend_loc == "on data"}
    355 _paga(adata, ax=ax, show=False, text_kwds=text_kwds, **paga_kwargs)

File /data/person/lab/qinty/.conda/envs/pysc/lib/python3.9/site-packages/scvelo/plotting/scatter.py:668, in scatter(adata, basis, x, y, vkey, color, use_raw, layer, color_map, colorbar, palette, size, alpha, linewidth, linecolor, perc, groups, sort_order, components, projection, legend_loc, legend_loc_lines, legend_fontsize, legend_fontweight, legend_fontoutline, legend_align_text, xlabel, ylabel, title, fontsize, figsize, xlim, ylim, add_density, add_assignments, add_linfit, add_polyfit, add_rug, add_text, add_text_pos, add_margin, add_outline, outline_width, outline_color, n_convolve, smooth, normalize_data, rescale_color, color_gradients, dpi, frameon, zorder, ncols, nrows, wspace, hspace, show, save, ax, **kwargs)
    666     if not (add_outline is None or g_bool is None):
    667         groups = add_outline
--> 668     set_legend(
    669         adata,
    670         ax,
    671         color,
    672         legend_loc,
    673         scatter_array,
    674         legend_fontweight,
    675         legend_fontsize,
    676         legend_fontoutline,
    677         legend_align_text,
    678         groups,
    679     )
    680 if add_density:
    681     plot_density(x, y, add_density, ax=ax)

File /data/person/lab/qinty/.conda/envs/pysc/lib/python3.9/site-packages/scvelo/plotting/utils.py:555, in set_legend(adata, ax, value_to_plot, legend_loc, scatter_array, legend_fontweight, legend_fontsize, legend_fontoutline, legend_align_text, groups)
    553     legend_fontoutline = 1
    554 obs_vals = adata.obs[value_to_plot]
--> 555 obs_vals.cat.categories = obs_vals.cat.categories.astype(str)
    556 color_keys = adata.uns[f"{value_to_plot}_colors"]
    557 if isinstance(color_keys, dict):

File /data/person/lab/qinty/.conda/envs/pysc/lib/python3.9/site-packages/pandas/core/base.py:178, in NoNewAttributesMixin.__setattr__(self, key, value)
    172 if getattr(self, "__frozen", False) and not (
    173     key == "_cache"
    174     or key in type(self).__dict__
    175     or getattr(self, key, None) is not None
    176 ):
    177     raise AttributeError(f"You cannot add any new attribute '{key}'")
--> 178 object.__setattr__(self, key, value)

File /data/person/lab/qinty/.conda/envs/pysc/lib/python3.9/site-packages/pandas/core/accessor.py:99, in PandasDelegate._add_delegate_accessors.<locals>._create_delegator_property.<locals>._setter(self, new_values)
     98 def _setter(self, new_values):
---> 99     return self._delegate_property_set(name, new_values)

File /data/person/lab/qinty/.conda/envs/pysc/lib/python3.9/site-packages/pandas/core/arrays/categorical.py:2915, in CategoricalAccessor._delegate_property_set(self, name, new_values)
   2914 def _delegate_property_set(self, name: str, new_values):  # type: ignore[override]
-> 2915     return setattr(self._parent, name, new_values)

AttributeError: can't set attribute

Thanks for helping