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Commits on Oct 10, 2017

• ARROW-1503: [Python] Add default serialization context, callbacks for pandas.Series/DataFrame

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  wesm

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• ARROW-1593: [Python] Pass through preserve_index to RecordBatch.from_pandas in serialize_pandas

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Commits on Oct 8, 2017

• ARROW-1594: [Python] Multithreaded conversions to Arrow in from_pandas

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Commits on Oct 7, 2017

• ARROW-1585/ARROW-1586: [PYTHON] serialize_pandas roundtrip loses columns name

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  cpcloud

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• ARROW-1250: [Python] Add pyarrow.types module with useful type checking functions

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Commits on Oct 5, 2017

• ARROW-1526: [Python] Add unit test for fix in PARQUET-1100

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• ARROW-1616: [Python] Add unit test for RecordBatchWriter.write dispatching to write_table or write_batch

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• ARROW-1633: [Python] Support NumPy string and unicode types in pyarrow.array, Array.from_pandas

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• ARROW-226: [C++] If opening an HDFS file fails and it does not exist, say so to help with debugging

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  wesm

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Commits on Oct 4, 2017

• ARROW-1584: [C++/Python] Support Null type in IPC round trips, fix serialize_pandas on empty DataFrame

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Commits on Oct 3, 2017

• ARROW-1625: [Serialization] Support OrderedDict and defaultdict serialization

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  pcmoritz

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• ARROW-838: [Python] Expand pyarrow.array to handle NumPy arrays not originating in pandas

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Commits on Sep 20, 2017

• ARROW-1557 [Python] Validate names length in Table.from_arrays

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  TomAugspurger

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Commits on Sep 19, 2017

• ARROW-1550: [Python] Followup: fix flake8 warning

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• ARROW-1550: [Python] Explicitly close owned file handles in ParquetWriter.close to avoid Windows flakiness

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Commits on Sep 12, 2017

• ARROW-1532: [Python] Referencing an Empty Schema causes a SegFault

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  cpcloud

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• ARROW-1459: [Python] Use list values length to advance offset when reconstructing array of ndarrays

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Commits on Sep 11, 2017

• ARROW-1307: [Python] Expand IPC section to include object serialization, Feather format. Add Feather functions to API listing

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Commits on Sep 10, 2017

• ARROW-1359: [C++] Add flavor='spark' option to write_parquet that sanitizes schema field names

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  wesm

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• ARROW-594: [C++/Python] Write arrow::Table to stream and file writers

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  wesm

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Commits on Sep 8, 2017

• ARROW-1480: [Python] Improve performance of serializing sets

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  pcmoritz

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• ARROW-1156: [C++/Python] Expand casting API, add UnaryKernel callable. Use Cast in appropriate places when converting from pandas

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Commits on Sep 7, 2017

• ARROW-622 [Python] deprecate timestamps_to_ms in .from_pandas()

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• ARROW-1430: [Python] Python CI build outside of a bash function scope, enable flake8 to fail build

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• ARROW-1435: [Python] Properly handle time zone metadata in Parquet round trips

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Commits on Sep 6, 2017

• ARROW-1446: [Python] Add (very slow) large memory unit test for int32 overflow in PARQUET-1090

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• ARROW-1451: [C++] Add public API file for IO section in arrow/io/api.h

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• ARROW-1405: [Python] Expose LoggingMemoryPool in Python API

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• ARROW-1396: [C++] Add PrettyPrint for schemas that outputs dictionaries

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Commits on Sep 5, 2017

• ARROW-1317: [Python] Attempt to set Hadoop CLASSPATH when using JNI

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• ARROW-1377: [Python] Add ParquetFile.scan_contents function to use for benchmarking

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• ARROW-1458: [Python] Document that create_parents=False is unsupported in HadoopFileSystem

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Commits on Sep 4, 2017

• ARROW-1417: [Python] Allow more generic filesystem objects to be passed to ParquetDataset

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• ARROW-1453: [C++/Python] Support non-contiguous Tensors in WriteTensor

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  pcmoritz

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• ARROW-1390: [Python] Add more serialization tests

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