Miki Tebeka created ARROW-666:
---------------------------------
Summary: [Python] Error in DictionaryArray __repr__
Key: ARROW-666
URL: https://issues.apache.org/jira/browse/ARROW-666
Project: Apache Arrow
Issue Type: Bug
Components: Python
Reporter: Miki Tebeka
d.py is
{code}
import pandas as pd
import pyarrow as pa
vals = pd.Series(['green', 'red', 'blue'] * 4)
d = pd.Series(['red', 'green', 'blue'])
print(d)
ind = vals.apply(pd.Index(d).get_loc)
print(vals)
print(ind)
v = pa.DictionaryArray.from_arrays(ind, d)
print(v)
{code}
Running this results in the following error:
{noformat}
╭─miki@xubi python (git:ARROW-539)
╰─<venv:python/venv>$ python d.py Mon Mar 20, 12:12
1 ↵
0 red
1 green
2 blue
dtype: object
0 green
1 red
2 blue
3 green
4 red
5 blue
6 green
7 red
8 blue
9 green
10 red
11 blue
dtype: object
0 1
1 0
2 2
3 1
4 0
5 2
6 1
7 0
8 2
9 1
10 0
11 2
dtype: int64
Traceback (most recent call last):
File "d.py", line 12, in <module>
print(v)
File "pyarrow/array.pyx", line 215, in pyarrow.array.Array.__repr__
(/home/miki/work/2sigma/arrow/python/build/temp.linux-x86_64-3.6/array.cxx:4132)
values = array_format(self, window=10)
File "/home/miki/work/2sigma/arrow/python/pyarrow/formatting.py", line 27, in
array_format
for x in arr:
File "pyarrow/array.pyx", line 209, in __iter__
(/home/miki/work/2sigma/arrow/python/build/temp.linux-x86_64-3.6/array.cxx:3959)
yield self.getitem(i)
File "pyarrow/array.pyx", line 255, in pyarrow.array.Array.getitem
(/home/miki/work/2sigma/arrow/python/build/temp.linux-x86_64-3.6/array.cxx:4825)
return scalar.box_scalar(self.type, self.sp_array, i)
File "pyarrow/scalar.pyx", line 246, in pyarrow.scalar.box_scalar
(/home/miki/work/2sigma/arrow/python/build/temp.linux-x86_64-3.6/scalar.cxx:4522)
val = _scalar_classes[type.type.type]()
KeyError: 25
╭─miki@xubi python (git:ARROW-539)
╰─<venv:python/venv>$
{noformat}
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