I encountered this edge case bug in PyArrow v2.0.0. For some reason, pa.array() does not know how to support pa.lib.TimestampScalar objects. This bug completely blocks my specific use case, although I do recognize that this edge case seems kind of wonky. Nonetheless, I don't see any reason why PyArrow would not understand one of it's own object types.

Stacktrace:

ArrowInvalid: Could not convert 2020-11-04 22:50:16.276892 with type pyarrow.lib.TimestampScalar: did not recognize Python value type when inferring an Arrow data type

Reproducible Code:

import pandas as pd
import pyarrow as pa

pa.array([pa.scalar(pd.to_datetime('2020-11-04 22:50:16.276892000'))])

Environment: Windows 10, Python 3.7.4, PyArrow 2.0.0
Reporter: slatebit

Related issues:

• [Python] accept pyarrow values / scalars in constructor functions ? (is duplicated by)

_{Note: This issue was originally created as ARROW-10935. Please see the migration documentation for further details.}