namespace ](polars.api.register_expr_namespace.html)
    * [ polars.api.register_dataframe_namespace ](polars.api.register_dataframe_namespace.html)
    * [ polars.api.register_lazyframe_namespace ](polars.api.register_lazyframe_namespace.html)
    * [ polars.api.register_series_namespace ](polars.api.register_series_namespace.html)

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    * [ polars.SQLContext.execute ](polars.SQLContext.execute.html)
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    * [ polars.SQLContext.tables ](polars.SQLContext.tables.html)

  * [ Exceptions ](../exceptions.html) __
    * [ polars.exceptions.ArrowError ](polars.exceptions.ArrowError.html)
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    * [ polars.exceptions.SchemaFieldNotFoundError ](polars.exceptions.SchemaFieldNotFoundError.html)
    * [ polars.exceptions.ShapeError ](polars.exceptions.ShapeError.html)
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    * [ polars.testing.assert_series_equal ](polars.testing.assert_series_equal.html)
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    * [ polars.testing.parametric.dataframes ](polars.testing.parametric.dataframes.html)
    * [ polars.testing.parametric.series ](polars.testing.parametric.series.html)
    * [ polars.testing.parametric.column ](polars.testing.parametric.column.html)
    * [ polars.testing.parametric.columns ](polars.testing.parametric.columns.html)
    * [ polars.testing.parametric.create_list_strategy ](polars.testing.parametric.create_list_strategy.html)
    * [ polars.testing.parametric.load_profile ](polars.testing.parametric.load_profile.html)
    * [ polars.testing.parametric.set_profile ](polars.testing.parametric.set_profile.html)

  * [ Metadata ](../metadata.html) __
    * [ polars.build_info ](polars.build_info.html)
    * [ polars.get_index_type ](polars.get_index_type.html)
    * [ polars.show_versions ](polars.show_versions.html)
    * [ polars.thread_pool_size ](polars.thread_pool_size.html)
    * [ polars.threadpool_size ](polars.threadpool_size.html)

  * [ __ ](../../index.html)
  * [ Python API reference ](../index.html)
  * [ Data types ](../datatypes.html)
  * polars.datat... 

#  polars.datatypes.Null  #

_ class  _ polars.datatypes.  Null  [ [source]  ](https://github.com/pola-
rs/polars/blob/main/py-polars/polars/datatypes/classes.py#L646-L647) #

    

Data type representing null values.

__init__  (  _ *  args  _ , _ **  kwargs  _ )  #

    

Methods

` __init__  ` (*args, **kwargs)  |   
---|---