============ 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
   LazyFrame.sink_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
   LazyFrame.sink_iceberg

JSON
~~~~
.. autosummary::
   :toctree: api/

   read_json
   read_ndjson
   scan_ndjson
   DataFrame.write_json
   DataFrame.write_ndjson
   LazyFrame.sink_ndjson

Lines
~~~~~
.. autosummary::
   :toctree: api/

   read_lines
   scan_lines


Partition
~~~~~~~~~
Sink to disk with differing partitioning strategies.

.. autosummary::
   :toctree: api/

   PartitionBy

.. currentmodule:: polars.io.partition

.. autosummary::
   :toctree: api/

   FileProviderArgs

.. currentmodule:: polars

Parquet
~~~~~~~
.. autosummary::
   :toctree: api/

   read_parquet
   read_parquet_metadata
   read_parquet_schema
   scan_parquet
   DataFrame.write_parquet
   LazyFrame.sink_parquet

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