[Python] Segmentation fault when converting empty column as categorical

[asfimport]

When converting an empty column to categorical in pandas I get a segmentation fault

Reporter: Florian Jetter / @fjetter
Assignee: Uwe Korn / @xhochy

_{Note: This issue was originally created as ARROW-2510. Please see the migration documentation for further details.}

[asfimport]

Uwe Korn / @xhochy:
@fjetter I cannot reproduce the behaviour I expect that you are describing. The following code succeeds on master:

import pandas as pd
import pyarrow as pa
import pyarrow.parquet as pq

df = pd.DataFrame({'a': ['str']})
df['a'] = df['a'].astype('category')
pq.write_metadata(pa.Table.from_pandas(df).schema, '_common_metadata')
t = pq.read_table('_common_metadata')
t.to_pandas(categories=['a'])

[asfimport]

Uwe Korn / @xhochy:
Fixed in master, segfaulting in 0.9, closing