pyarrow.ExtensionType¶

class pyarrow.ExtensionType(DataType storage_type, extension_name)¶

Bases: BaseExtensionType

Concrete base class for Python-defined extension types.

Parameters:

__init__()¶

Initialize an extension type instance.

This should be called at the end of the subclass’ __init__ method.

Methods

`__init__`	Initialize an extension type instance.
`equals`(self, other)	Return true if type is equivalent to passed value.
`to_pandas_dtype`(self)	Return the equivalent NumPy / Pandas dtype.
`wrap_array`(self, storage)	Wrap the given storage array as an extension array.

Attributes

`bit_width`
`extension_name`	The extension type name.
`id`
`num_buffers`	Number of data buffers required to construct Array type excluding children.
`num_children`	The number of child fields.
`num_fields`	The number of child fields.
`storage_type`	The underlying storage type.

equals(self, other)¶

Return true if type is equivalent to passed value.

Parameters:

Returns:

num_buffers¶: Number of data buffers required to construct Array type excluding children.

wrap_array(self, storage)¶

Wrap the given storage array as an extension array.

Parameters:

Returns:

pyarrow.Schema

pyarrow.PyExtensionType