lit

function

def lit(
    value: Any,
    dtype: PolarsDataType | None = None,
    *,
    allow_object: bool = False,
) -> Expr

Categories: generation

Build an expression from a literal (constant) value.

Use it to add or compare against constant values in select / with_columns / filter.

Parameters

parameter

valueAny

The literal value.

parameter

dtypePolarsDataType | None (DataType | None)

Data type for the literal; inferred from value when omitted.

parameter

allow_objectbool

Allow storing an arbitrary Python object as the value.

Examples

tf.with_columns(lit(7).alias("c"))
tf.select(lit(1.5).alias("r"))