jorisvandenbossche opened a new issue, #465:
URL: https://github.com/apache/arrow-nanoarrow/issues/465
```
In [13]: arr = na.array(pa.array([None]))
In [14]: arr.schema
Out[14]: <Schema> na
In [15]: arr
Out[15]:
---------------------------------------------------------------------------
KeyError Traceback (most recent call last)
File
~/conda/envs/arrow-dev/lib/python3.11/site-packages/IPython/core/formatters.py:708,
in PlainTextFormatter.__call__(self, obj)
701 stream = StringIO()
702 printer = pretty.RepresentationPrinter(stream, self.verbose,
703 self.max_width, self.newline,
704 max_seq_length=self.max_seq_length,
705 singleton_pprinters=self.singleton_printers,
706 type_pprinters=self.type_printers,
707 deferred_pprinters=self.deferred_printers)
--> 708 printer.pretty(obj)
709 printer.flush()
710 return stream.getvalue()
File
~/conda/envs/arrow-dev/lib/python3.11/site-packages/IPython/lib/pretty.py:410,
in RepresentationPrinter.pretty(self, obj)
407 return meth(obj, self, cycle)
408 if cls is not object \
409 and callable(cls.__dict__.get('__repr__')):
--> 410 return _repr_pprint(obj, self, cycle)
412 return _default_pprint(obj, self, cycle)
413 finally:
File
~/conda/envs/arrow-dev/lib/python3.11/site-packages/IPython/lib/pretty.py:778,
in _repr_pprint(obj, p, cycle)
776 """A pprint that just redirects to the normal repr function."""
777 # Find newlines and replace them with p.break_()
--> 778 output = repr(obj)
779 lines = output.splitlines()
780 with p.group():
File ~/scipy/repos/arrow-nanoarrow/python/src/nanoarrow/array.py:614, in
Array.__repr__(self)
613 def __repr__(self) -> str:
--> 614 return self.to_string()
File ~/scipy/repos/arrow-nanoarrow/python/src/nanoarrow/array.py:597, in
Array.to_string(self, width_hint, items_hint)
588 schema_repr = _schema_repr(
589 self.schema,
590 max_char_width=width_hint - len(cls_name) - len(len_text) - 2,
591 prefix="",
592 include_metadata=False,
593 )
595 lines = [f"{cls_name}<{schema_repr}>{len_text}"]
--> 597 for i, item in enumerate(self.iter_py()):
598 if i >= items_hint:
599 break
File ~/scipy/repos/arrow-nanoarrow/python/src/nanoarrow/iterator.py:184, in
PyIterator.get_iterator(cls, obj, schema)
182 for array in stream:
183 iterator._set_array(array)
--> 184 yield from iterator
File ~/scipy/repos/arrow-nanoarrow/python/src/nanoarrow/iterator.py:209, in
PyIterator.__iter__(self)
207 def __iter__(self):
208 """Iterate over all elements in the current chunk"""
--> 209 return self._iter_chunk(0, len(self._array_view))
File ~/scipy/repos/arrow-nanoarrow/python/src/nanoarrow/iterator.py:226, in
PyIterator._iter_chunk(self, offset, length)
224 type_id = self._schema_view.type_id
225 if type_id not in _ITEMS_ITER_LOOKUP:
--> 226 raise KeyError(
227 f"Can't resolve iterator for type '{self._schema_view.type}'"
228 )
230 factory = getattr(self, _ITEMS_ITER_LOOKUP[type_id])
231 return factory(offset, length)
KeyError: "Can't resolve iterator for type 'na'"
```
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