Printing throws error

[dhalpern]

Printing the initial array loaded using cmlreaders throws an error

The following reproducible example:

import cmlreaders as cml
exp = 'FR1'
ix = cml.CMLReader.get_data_index()
exp_ix = ix.query('experiment == @exp')
df_sess = exp_ix.iloc[0]
buf = 1500
rel_start = -500
rel_stop = 2100
event_type = 'WORD'
reader = cml.CMLReader(subject=df_sess['subject'], 
                           experiment=df_sess['experiment'], session=df_sess['session'],
                           localization=df_sess['localization'], montage=df_sess['montage'])
events = reader.load('task_events')
events = events.query('type == @event_type and eegoffset != -1')
events = events[events['list'] > 0]
if 'stim_params' in events.columns:
    events.drop(columns='stim_params', inplace=True)
if 'distractor' in events.columns:
    events.drop(columns='distractor', inplace=True)
scheme = reader.load("pairs")
dat = reader.load_eeg(events=events.iloc[0:12],
                    rel_start=-buf+rel_start,
                    rel_stop=buf+rel_stop,
                    scheme=scheme).to_ptsa()

Returns

TypeError                                 Traceback (most recent call last)
File /usr/global/miniconda/py310_23.1.0-1/envs/workshop_311/lib/python3.11/site-packages/IPython/core/formatters.py:344, in BaseFormatter.__call__(self, obj)
    342     method = get_real_method(obj, self.print_method)
    343     if method is not None:
--> 344         return method()
    345     return None
    346 else:

File /usr/global/miniconda/py310_23.1.0-1/envs/workshop_311/lib/python3.11/site-packages/xarray/core/common.py:173, in AbstractArray._repr_html_(self)
    171 if OPTIONS["display_style"] == "text":
    172     return f"<pre>{escape(repr(self))}</pre>"
--> 173 return formatting_html.array_repr(self)

File /usr/global/miniconda/py310_23.1.0-1/envs/workshop_311/lib/python3.11/site-packages/xarray/core/formatting_html.py:322, in array_repr(arr)
    320 if hasattr(arr, "xindexes"):
    321     indexes = _get_indexes_dict(arr.xindexes)
--> 322     sections.append(index_section(indexes))
    324 sections.append(attr_section(arr.attrs))
    326 return _obj_repr(arr, header_components, sections)

File /usr/global/miniconda/py310_23.1.0-1/envs/workshop_311/lib/python3.11/site-packages/xarray/core/formatting_html.py:199, in _mapping_section(mapping, name, details_func, max_items_collapse, expand_option_name, enabled)
    192 expanded = _get_boolean_with_default(
    193     expand_option_name, n_items < max_items_collapse
    194 )
    195 collapsed = not expanded
    197 return collapsible_section(
    198     name,
--> 199     details=details_func(mapping),
    200     n_items=n_items,
    201     enabled=enabled,
    202     collapsed=collapsed,
    203 )

File /usr/global/miniconda/py310_23.1.0-1/envs/workshop_311/lib/python3.11/site-packages/xarray/core/formatting_html.py:159, in summarize_indexes(indexes)
    158 def summarize_indexes(indexes):
--> 159     indexes_li = "".join(
    160         f"<li class='xr-var-item'>{summarize_index(v, i)}</li>"
    161         for v, i in indexes.items()
    162     )
    163     return f"<ul class='xr-var-list'>{indexes_li}</ul>"

File /usr/global/miniconda/py310_23.1.0-1/envs/workshop_311/lib/python3.11/site-packages/xarray/core/formatting_html.py:160, in <genexpr>(.0)
    158 def summarize_indexes(indexes):
    159     indexes_li = "".join(
--> 160         f"<li class='xr-var-item'>{summarize_index(v, i)}</li>"
    161         for v, i in indexes.items()
    162     )
    163     return f"<ul class='xr-var-list'>{indexes_li}</ul>"

File /usr/global/miniconda/py310_23.1.0-1/envs/workshop_311/lib/python3.11/site-packages/xarray/core/formatting_html.py:144, in summarize_index(coord_names, index)
    142 index_id = f"index-{uuid.uuid4()}"
    143 preview = escape(inline_index_repr(index))
--> 144 details = short_index_repr_html(index)
    146 data_icon = _icon("icon-database")
    148 return (
    149     f"<div class='xr-index-name'><div>{name}</div></div>"
    150     f"<div class='xr-index-preview'>{preview}</div>"
   (...)
    154     f"<div class='xr-index-data'>{details}</div>"
    155 )

File /usr/global/miniconda/py310_23.1.0-1/envs/workshop_311/lib/python3.11/site-packages/xarray/core/formatting_html.py:136, in short_index_repr_html(index)
    133 if hasattr(index, "_repr_html_"):
    134     return index._repr_html_()
--> 136 return f"<pre>{escape(repr(index))}</pre>"

File /usr/global/miniconda/py310_23.1.0-1/envs/workshop_311/lib/python3.11/site-packages/xarray/core/indexes.py:568, in PandasIndex.__repr__(self)
    567 def __repr__(self):
--> 568     return f"PandasIndex({repr(self.index)})"

File /usr/global/miniconda/py310_23.1.0-1/envs/workshop_311/lib/python3.11/site-packages/pandas/core/indexes/base.py:1233, in Index.__repr__(self)
   1229 """
   1230 Return a string representation for this object.
   1231 """
   1232 klass_name = type(self).__name__
-> 1233 data = self._format_data()
   1234 attrs = self._format_attrs()
   1235 space = self._format_space()

File /usr/global/miniconda/py310_23.1.0-1/envs/workshop_311/lib/python3.11/site-packages/pandas/core/indexes/base.py:1275, in Index._format_data(self, name)
   1272     if is_object_dtype(self.categories):
   1273         is_justify = False
-> 1275 return format_object_summary(
   1276     self,
   1277     self._formatter_func,
   1278     is_justify=is_justify,
   1279     name=name,
   1280     line_break_each_value=self._is_multi,
   1281 )

File /usr/global/miniconda/py310_23.1.0-1/envs/workshop_311/lib/python3.11/site-packages/pandas/io/formats/printing.py:436, in format_object_summary(obj, formatter, is_justify, name, indent_for_name, line_break_each_value)
    433     line = space2
    435 for tail_item in tail[:-1]:
--> 436     word = tail_item + sep + " "
    437     summary, line = _extend_line(summary, line, word, display_width, space2)
    439 # last value: no sep added + 1 space of width used for trailing ','

TypeError: can only concatenate tuple (not "str") to tuple