types#

class pylibcudf.types.DataType#

Indicator for the logical data type of an element in a column.

This is the Cython representation of cudf::data_type.

Parameters:
idtype_id

The type’s identifier

scaleint

The scale associated with the data. Only used for decimal data types.

Methods

id(self)

Get the id associated with this data type.

scale(self)

Get the scale associated with this data type.
id(self) → type_id#

Get the id associated with this data type.

scale(self) → int32_t#

Get the scale associated with this data type.

pylibcudf.types.Interpolation#

See also cudf::interpolation.

Enum members

  • LINEAR

  • LOWER

  • HIGHER

  • MIDPOINT

  • NEAREST

pylibcudf.types.MaskState#

See also cudf::mask_state.

Enum members

  • UNALLOCATED

  • UNINITIALIZED

  • ALL_VALID

  • ALL_NULL

pylibcudf.types.NanEquality#

See also cudf::nan_equality.

Enum members

  • ALL_EQUAL

  • UNEQUAL

pylibcudf.types.NanPolicy#

See also cudf::nan_policy.

Enum members

  • NAN_IS_NULL

  • NAN_IS_VALID

pylibcudf.types.NullEquality#

See also cudf::null_equality.

Enum members

  • EQUAL

  • UNEQUAL

pylibcudf.types.NullOrder#

See also cudf::null_order.

Enum members

  • AFTER

  • BEFORE

pylibcudf.types.NullPolicy#

See also cudf::null_policy.

Enum members

  • EXCLUDE

  • INCLUDE

pylibcudf.types.Order#

See also cudf::order.

Enum members

  • ASCENDING

  • DESCENDING

pylibcudf.types.Sorted#

See also cudf::sorted.

Enum members

  • NO

  • YES

pylibcudf.types.TypeId#

See also cudf::type_id.

Enum members

  • EMPTY

  • INT8

  • INT16

  • INT32

  • INT64

  • UINT8

  • UINT16

  • UINT32

  • UINT64

  • FLOAT32

  • FLOAT64

  • BOOL8

  • TIMESTAMP_DAYS

  • TIMESTAMP_SECONDS

  • TIMESTAMP_MILLISECONDS

  • TIMESTAMP_MICROSECONDS

  • TIMESTAMP_NANOSECONDS

  • DURATION_DAYS

  • DURATION_SECONDS

  • DURATION_MILLISECONDS

  • DURATION_MICROSECONDS

  • DURATION_NANOSECONDS

  • DICTIONARY32

  • STRING

  • LIST

  • DECIMAL32

  • DECIMAL64

  • DECIMAL128

  • STRUCT

  • NUM_TYPE_IDS

pylibcudf.types.size_of(DataType t) → size_type#

Returns the size in bytes of elements of the specified data_type.

Only fixed-width types are supported.

For details, see size_of().

Parameters:
tDataType

The DataType to get the size of.

Returns:
int

Size in bytes of an element of the specified type.