pyarrow.MapType

class pyarrow.MapType

Bases: DataType

Concrete class for map data types.

__init__(*args, **kwargs)

Methods

__init__(*args, **kwargs)
equals(self, other, *[, check_metadata])	Return true if type is equivalent to passed value.
field(self, i)
to_pandas_dtype(self)	Return the equivalent NumPy / Pandas dtype.

Attributes

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id
item_field	The field for items in the map entries.
item_type	The data type of items in the map entries.
key_field	The field for keys in the map entries.
key_type	The data type of keys in the map entries.
num_buffers	Number of data buffers required to construct Array type excluding children.
num_fields	The number of child fields.

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equals(self, other, *, check_metadata=False)

Return true if type is equivalent to passed value.

Parameters:

otherDataType or str convertible to DataType

check_metadatabool

Whether nested Field metadata equality should be checked as well.

Returns:

is_equalbool

field(self, i) → Field

id

item_field

The field for items in the map entries.

item_type

The data type of items in the map entries.

key_field

The field for keys in the map entries.

key_type

The data type of keys in the map entries.

num_buffers

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

num_fields

The number of child fields.

to_pandas_dtype(self)

Return the equivalent NumPy / Pandas dtype.

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pyarrow.ListType

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pyarrow.StructType