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https://issues.apache.org/jira/browse/ARROW-18264?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joris Van den Bossche resolved ARROW-18264.
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Fix Version/s: 11.0.0
Resolution: Fixed
Issue resolved by pull request 14637
[https://github.com/apache/arrow/pull/14637]
> [Python] Add Time64Scalar.value field
> -------------------------------------
>
> Key: ARROW-18264
> URL: https://issues.apache.org/jira/browse/ARROW-18264
> Project: Apache Arrow
> Issue Type: Improvement
> Components: Python
> Affects Versions: 10.0.0
> Environment: pyarrow==10.0.0
> No pandas installed
> Reporter: &res
> Assignee: &res
> Priority: Minor
> Labels: pull-request-available
> Fix For: 11.0.0
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> At the moment, when pandas is not installed, it is not possible to access the
> underlying value for a Time64Scalar of "ns" precision without casting it to
> int64.
> {code:java}
> time_ns = pa.array([1, 2, 3],pa.time64("ns"))
> scalar = time_ns[0]
> scalar.as_py() {code}
> Raises:
> {code:java}
> ValueError: Nanosecond resolution temporal type 1 is not safely convertible
> to microseconds to convert to datetime.datetime. Install pandas to return as
> Timestamp with nanosecond support or access the .value attribute{code}
> But value isn't available:
> {code:java}
> scalar.value {code}
> Raises:
> {code:java}
> AttributeError: 'pyarrow.lib.Time64Scalar' object has no attribute 'value'
> {code}
> The workaround is to do:
> {code:java}
> scalar.cast(pa.int64()).as_py() {code}
> It'd be good if a value field was added to Time64Scalar, just like the
> TimestampScalar
> {code:java}
> timestamp_ns = pa.array([1, 2, 3],pa.timestamp("ns", "UTC"))
> scalar = timestamp_ns[0]
> scalar.value {code}
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