pyarrow.csv.CSVWriter

class pyarrow.csv.CSVWriter(sink, Schema schema, WriteOptions write_options=None, *, MemoryPool memory_pool=None)

Bases: _CRecordBatchWriter

Writer to create a CSV file.

Parameters:

sinkstr, path, pyarrow.OutputStream or file-like object

The location where to write the CSV data.

schemapyarrow.Schema

The schema of the data to be written.

write_optionspyarrow.csv.WriteOptions

Options to configure writing the CSV data.

memory_poolMemoryPool, optional

Pool for temporary allocations.

__init__(*args, **kwargs)

Methods

__init__(*args, **kwargs)
close(self)	Close stream and write end-of-stream 0 marker.
write(self, table_or_batch)	Write RecordBatch or Table to stream.
write_batch(self, RecordBatch batch[, ...])	Write RecordBatch to stream.
write_table(self, Table table[, max_chunksize])	Write Table to stream in (contiguous) RecordBatch objects.

Attributes

stats

Current IPC write statistics.

close(self)

Close stream and write end-of-stream 0 marker.

stats

Current IPC write statistics.

write(self, table_or_batch)

Write RecordBatch or Table to stream.

Parameters:

table_or_batch{RecordBatch, Table}

write_batch(self, RecordBatch batch, custom_metadata=None)

Write RecordBatch to stream.

Parameters:

batchRecordBatch

custom_metadatamapping or KeyValueMetadata

Keys and values must be string-like / coercible to bytes

write_table(self, Table table, max_chunksize=None)

Write Table to stream in (contiguous) RecordBatch objects.

Parameters:

tableTable

max_chunksizeint, default None

Maximum number of rows for RecordBatch chunks. Individual chunks may be smaller depending on the chunk layout of individual columns.