AttributeError: 'YAxis' object has no attribute '_gridOnMajor'

[alexlenail]

Just installed this package which seems quite useful! Unfortunately, following along with the docs, the basic example doesn't work:

frame = XAxis() + BED("./raw/ENCODE/dhs/downloads/ENCFF003CAJ.bed") + TrackHeight(8)

frame.plot("chr9:4700000-4900000")

AttributeError: 'YAxis' object has no attribute '_gridOnMajor'

---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
/usr/local/lib/python3.7/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)

/usr/local/lib/python3.7/site-packages/IPython/core/pylabtools.py in <lambda>(fig)
    242 
    243     if 'png' in formats:
--> 244         png_formatter.for_type(Figure, lambda fig: print_figure(fig, 'png', **kwargs))
    245     if 'retina' in formats or 'png2x' in formats:
    246         png_formatter.for_type(Figure, lambda fig: retina_figure(fig, **kwargs))

/usr/local/lib/python3.7/site-packages/IPython/core/pylabtools.py in print_figure(fig, fmt, bbox_inches, **kwargs)
    126 
    127     bytes_io = BytesIO()
--> 128     fig.canvas.print_figure(bytes_io, **kw)
    129     data = bytes_io.getvalue()
    130     if fmt == 'svg':

/usr/local/lib/python3.7/site-packages/matplotlib/backend_bases.py in print_figure(self, filename, dpi, facecolor, edgecolor, orientation, format, bbox_inches, pad_inches, bbox_extra_artists, backend, **kwargs)
   2191                            else suppress())
   2192                     with ctx:
-> 2193                         self.figure.draw(renderer)
   2194 
   2195                     bbox_inches = self.figure.get_tightbbox(

/usr/local/lib/python3.7/site-packages/matplotlib/artist.py in draw_wrapper(artist, renderer, *args, **kwargs)
     39                 renderer.start_filter()
     40 
---> 41             return draw(artist, renderer, *args, **kwargs)
     42         finally:
     43             if artist.get_agg_filter() is not None:

/usr/local/lib/python3.7/site-packages/matplotlib/figure.py in draw(self, renderer)
   1862             self.patch.draw(renderer)
   1863             mimage._draw_list_compositing_images(
-> 1864                 renderer, self, artists, self.suppressComposite)
   1865 
   1866             renderer.close_group('figure')

/usr/local/lib/python3.7/site-packages/matplotlib/image.py in _draw_list_compositing_images(renderer, parent, artists, suppress_composite)
    129     if not_composite or not has_images:
    130         for a in artists:
--> 131             a.draw(renderer)
    132     else:
    133         # Composite any adjacent images together

/usr/local/lib/python3.7/site-packages/matplotlib/artist.py in draw_wrapper(artist, renderer, *args, **kwargs)
     39                 renderer.start_filter()
     40 
---> 41             return draw(artist, renderer, *args, **kwargs)
     42         finally:
     43             if artist.get_agg_filter() is not None:

/usr/local/lib/python3.7/site-packages/matplotlib/cbook/deprecation.py in wrapper(*inner_args, **inner_kwargs)
    409                          else deprecation_addendum,
    410                 **kwargs)
--> 411         return func(*inner_args, **inner_kwargs)
    412 
    413     return wrapper

/usr/local/lib/python3.7/site-packages/matplotlib/axes/_base.py in draw(self, renderer, inframe)
   2745             renderer.stop_rasterizing()
   2746 
-> 2747         mimage._draw_list_compositing_images(renderer, self, artists)
   2748 
   2749         renderer.close_group('axes')

/usr/local/lib/python3.7/site-packages/matplotlib/image.py in _draw_list_compositing_images(renderer, parent, artists, suppress_composite)
    129     if not_composite or not has_images:
    130         for a in artists:
--> 131             a.draw(renderer)
    132     else:
    133         # Composite any adjacent images together

/usr/local/lib/python3.7/site-packages/mpl_toolkits/axisartist/axis_artist.py in draw(self, renderer)
    686         if self._grid_helper is not None:
    687             self._grid_helper.update_lim(self.axes)
--> 688             gl = self._grid_helper.get_gridlines(self._which, self._axis)
    689             if gl:
    690                 self.set_segments([np.transpose(l) for l in gl])

/usr/local/lib/python3.7/site-packages/mpl_toolkits/axisartist/axislines.py in get_gridlines(self, which, axis)
    440             x1, x2 = self.axes.get_xlim()
    441             locs = []
--> 442             if self.axes.yaxis._gridOnMajor:
    443                 locs.extend(self.axes.yaxis.major.locator())
    444             if self.axes.yaxis._gridOnMinor:

AttributeError: 'YAxis' object has no attribute '_gridOnMajor'

[alexlenail]

Downgrading matplotlib to 3.1.1 from 3.4.3 resolves this issue.

[alexlenail]

deeptools/pyGenomeTracks#356