============
Input/output
============
.. currentmodule:: polars
Avro
~~~~
.. autosummary::
:toctree: api/
read_avro
DataFrame.write_avro
Clipboard
~~~~~~~~~
.. autosummary::
:toctree: api/
read_clipboard
DataFrame.write_clipboard
CSV
~~~
.. autosummary::
:toctree: api/
read_csv
read_csv_batched
scan_csv
DataFrame.write_csv
LazyFrame.sink_csv
.. currentmodule:: polars.io.csv.batched_reader
.. autosummary::
:toctree: api/
BatchedCsvReader.next_batches
.. currentmodule:: polars
Database
~~~~~~~~
.. autosummary::
:toctree: api/
read_database
read_database_uri
DataFrame.write_database
Delta Lake
~~~~~~~~~~
.. autosummary::
:toctree: api/
read_delta
scan_delta
DataFrame.write_delta
Excel / ODS
~~~~~~~~~~~
.. autosummary::
:toctree: api/
read_excel
read_ods
DataFrame.write_excel
Feather / IPC
~~~~~~~~~~~~~
.. autosummary::
:toctree: api/
read_ipc
read_ipc_schema
read_ipc_stream
scan_ipc
DataFrame.write_ipc
DataFrame.write_ipc_stream
LazyFrame.sink_ipc
Iceberg
~~~~~~~
.. autosummary::
:toctree: api/
scan_iceberg
DataFrame.write_iceberg
JSON
~~~~
.. autosummary::
:toctree: api/
read_json
read_ndjson
scan_ndjson
DataFrame.write_json
DataFrame.write_ndjson
LazyFrame.sink_ndjson
Partition
~~~~~~~~~
Sink to disk with differing partitioning strategies.
.. autosummary::
:toctree: api/
PartitionByKey
PartitionMaxSize
PartitionParted
.. currentmodule:: polars.io.partition
.. autosummary::
:toctree: api/
KeyedPartition
BasePartitionContext
KeyedPartitionContext
.. currentmodule:: polars
Parquet
~~~~~~~
.. autosummary::
:toctree: api/
read_parquet
read_parquet_metadata
read_parquet_schema
scan_parquet
DataFrame.write_parquet
LazyFrame.sink_parquet
.. currentmodule:: polars.io.parquet
.. autosummary::
:toctree: api/
ParquetFieldOverwrites
.. currentmodule:: polars
PyArrow Datasets
~~~~~~~~~~~~~~~~
Connect to pyarrow datasets.
.. autosummary::
:toctree: api/
scan_pyarrow_dataset
Cloud Credentials
~~~~~~~~~~~~~~~~~
Configuration for cloud credential provisioning.
.. autosummary::
:toctree: api/
CredentialProvider
CredentialProviderAWS
CredentialProviderAzure
CredentialProviderGCP
Scan Cast Options
~~~~~~~~~~~~~~~~~
Configuration for type-casting during scans.
.. autosummary::
:toctree: api/
ScanCastOptions
