pyarrow.compute.fill_null¶

pyarrow.compute.fill_null(values, fill_value)[source]¶

Replace each null element in values with fill_value. The fill_value must be the same type as values or able to be implicitly casted to the array’s type.

Parameters

data (Array, ChunkedArray) – replace each null element with fill_value
fill_value (Scalar-like object) – Either a pyarrow.Scalar or any python object coercible to a Scalar. If not same type as data will attempt to cast.

Returns

result (depends on inputs)

Examples

>>> import pyarrow as pa
>>> arr = pa.array([1, 2, None, 3], type=pa.int8())
>>> fill_value = pa.scalar(5, type=pa.int8())
>>> arr.fill_null(fill_value)
pyarrow.lib.Int8Array object at 0x7f95437f01a0>
[
  1,
  2,
  5,
  3
]