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  * [ __ ](../../../index.html)
  * [ Python API reference ](../../index.html)
  * __
  * [ Manipulation/selection ](../modify_select.html)
  * polars.LazyF... 

#  polars.LazyFrame.select  #

LazyFrame.  select  (  _ *  exprs  :  IntoExpr  |  Iterable  [  IntoExpr  ]  _ , _ **  named_exprs  :  IntoExpr  _ )  →  Self  [ [source]  ](https://github.com/pola-rs/polars/blob/main/py-polars/polars/lazyframe/frame.py#L2862-L2969) # 
    

Select columns from this LazyFrame.

Parameters  :

    

***exprs**

    

Column(s) to select, specified as positional arguments. Accepts expression
input. Strings are parsed as column names, other non-expression inputs are
parsed as literals.

****named_exprs**

    

Additional columns to select, specified as keyword arguments. The columns will
be renamed to the keyword used.

Examples

Pass the name of a column to select that column.

    
    
    >>> lf = pl.LazyFrame(
    ...     {
    ...         "foo": [1, 2, 3],
    ...         "bar": [6, 7, 8],
    ...         "ham": ["a", "b", "c"],
    ...     }
    ... )
    >>> lf.select("foo").collect()
    shape: (3, 1)
    ┌─────┐
    │ foo │
    │ --- │
    │ i64 │
    ╞═════╡
    │ 1   │
    │ 2   │
    │ 3   │
    └─────┘
    

Multiple columns can be selected by passing a list of column names.

    
    
    >>> lf.select(["foo", "bar"]).collect()
    shape: (