Commits
fjetter authored and Wes McKinney committed 6e26701257b
ARROW-439: [Python] Add option in "to_pandas" conversions to yield Categorical from String/Binary arrays I added support to cast Arrays and Columns to dictionaries with the possibility to extend the casting to different types. I intend to add more types to the casting, at least for trivial cases, but first I wanted to get some feedback on the current state. Author: fjetter <florian.jetter@blue-yonder.com> Author: Wes McKinney <wes.mckinney@twosigma.com> Closes #909 from fjetter/feature/make_dictionary_array and squashes the following commits: d1189395 [Wes McKinney] Fix deprecated API usage 606724df [Wes McKinney] Handle ordered categories in arrow_to_pandas.cc. flake8 Cython fixes d2bb8d8e [Wes McKinney] Move dictionary index type dispatch and memory allocation into CategoricalBlock::Write 6ab28730 [fjetter] Remove dead code bea4cb9e [fjetter] Merge master bb3209ba [fjetter] Add pool to ConvertTableToPandas in python-test 24fbf424 [fjetter] Format arrow_to_pandas 39b22ff6 [fjetter] Allocate categorical blocks in write path b7f389f3 [fjetter] Pass memory pool from the outside c496cb5f [fjetter] Pass pandas options through to pandas write before conversion 4b12aa13 [fjetter] Push pandas options down b6fca35c [fjetter] Rename and add docs for EncodeDictionary 6479d292 [fjetter] add MakeDictionaryArray