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)
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    * [ 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.count_match  #

Series.list.  count_match  (

     _ element  :  [ float  ](https://docs.python.org/3/library/functions.html#float "\(in Python v3.12\)") |  [ str  ](https://docs.python.org/3/library/stdtypes.html#str "\(in Python v3.12\)") |  [ bool  ](https://docs.python.org/3/library/functions.html#bool "\(in Python v3.12\)") |  [ int  ](https://docs.python.org/3/library/functions.html#int "\(in Python v3.12\)") |  date  |  datetime  |  time  |  Expr  _ , 
)  →  Expr  [ [source]  ](https://github.com/pola-
rs/polars/blob/py-0.20.23/py-polars/polars/series/list.py#L1061-L1075) #

    

Count how often the value produced by ` element  ` occurs.

Deprecated since version 0.19.3:  This method has been renamed to [ `
count_matches()  `
](polars.Series.list.count_matches.html#polars.Series.list.count_matches
"polars.Series.list.count_matches") .

Parameters  :

    

**element**

    

An expression that produces a single value

[ __ previous  polars.Series.list.contains  ](polars.Series.list.contains.html
"previous page") [ next  polars.Series.list.count_matches  __
](polars.Series.list.count_matches.html "next page")

__ On this page

  * ` Series.list.count_match()  `

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