Data types

DataType

Base class for all Polars data types.

Numeric

Decimal	Decimal 128-bit type with an optional precision and non-negative scale.
Float32	32-bit floating point type.
Float64	64-bit floating point type.
Int8	8-bit signed integer type.
Int16	16-bit signed integer type.
Int32	32-bit signed integer type.
Int64	64-bit signed integer type.
UInt8	8-bit unsigned integer type.
UInt16	16-bit unsigned integer type.
UInt32	32-bit unsigned integer type.
UInt64	64-bit unsigned integer type.

Temporal

Date	Calendar date type.
Datetime	Calendar date and time type.
Duration	Time duration/delta type.
Time	Time of day type.

Nested

Array(*args, **kwargs)	Nested list/array type with fixed length of inner arrays.
List(*args, **kwargs)	Nested list/array type with variable length of inner lists.
Struct(*args, **kwargs)	Struct composite type.

Other

Boolean	Boolean type.
Binary	Binary type.
Categorical	A categorical encoding of a set of strings.
Null	Type representing Null / None values.
Object	Type for wrapping arbitrary Python objects.
Utf8	UTF-8 encoded string type.
Unknown	Type representing Datatype values that could not be determined statically.