./api/polars.exceptions.SchemaError.html)
    * [ polars.exceptions.SchemaFieldNotFoundError ](../../api/polars.exceptions.SchemaFieldNotFoundError.html)
    * [ polars.exceptions.ShapeError ](../../api/polars.exceptions.ShapeError.html)
    * [ polars.exceptions.StructFieldNotFoundError ](../../api/polars.exceptions.StructFieldNotFoundError.html)
    * [ polars.exceptions.TooManyRowsReturnedError ](../../api/polars.exceptions.TooManyRowsReturnedError.html)

  * [ Testing ](../../testing.html) __
    * [ polars.testing.assert_frame_equal ](../../api/polars.testing.assert_frame_equal.html)
    * [ polars.testing.assert_frame_not_equal ](../../api/polars.testing.assert_frame_not_equal.html)
    * [ polars.testing.assert_series_equal ](../../api/polars.testing.assert_series_equal.html)
    * [ polars.testing.assert_series_not_equal ](../../api/polars.testing.assert_series_not_equal.html)
    * [ polars.testing.parametric.dataframes ](../../api/polars.testing.parametric.dataframes.html)
    * [ polars.testing.parametric.series ](../../api/polars.testing.parametric.series.html)
    * [ polars.testing.parametric.column ](../../api/polars.testing.parametric.column.html)
    * [ polars.testing.parametric.columns ](../../api/polars.testing.parametric.columns.html)
    * [ polars.testing.parametric.create_list_strategy ](../../api/polars.testing.parametric.create_list_strategy.html)
    * [ polars.testing.parametric.load_profile ](../../api/polars.testing.parametric.load_profile.html)
    * [ polars.testing.parametric.set_profile ](../../api/polars.testing.parametric.set_profile.html)

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

  * [ __ ](../../../index.html)
  * [ Python API reference ](../../index.html)
  * __
  * [ List ](../list.html)
  * polars.Serie... 

#  polars.Series.list.set_union  #

Series.list.  set_union  (  _ other  :  Series  _ )  →  Series  [ [source]
](https://github.com/pola-rs/polars/blob/py-0.20.23/py-
polars/polars/series/list.py#L961-L983) #

    

Compute the SET UNION between the elements in this list and the elements of `
other  ` .

Parameters  :

    

**other**

    

Right hand side of the set operation.

Examples

    
    
    >>> a = pl.Series([[1, 2, 3], [], [None, 3], [5, 6, 7]])
    >>> b = pl.Series([[2, 3, 4], [3], [3, 4, None], [6, 8]])
    >>> a.list.set_union(b)  
    shape: (4,)
    Series: '' [list[i64]]
    [
            [1, 2, 3, 4]
            [3]
            [null, 3, 4]
            [5, 6, 7, 8]
    ]
    

[ __ previous  polars.Series.list.set_symmetric_difference
](polars.Series.list.set_symmetric_difference.html "previous page") [ next
polars.Series.list.shift  __ ](polars.Series.list.shift.html "next page")

__ On this page

  * ` Series.list.set_union()  `

© Copyright 2020, Ritchie Vink.  

Created using [ Sphinx ](https://www.sphinx-doc.org/) 7.2.4.  

Built with the [ PyData Sphinx Theme ](https://pydata-sphinx-
theme.readthedocs.io/en/stable/index.html) 0.14.1.