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https://issues.apache.org/jira/browse/CASSANDRA-18879?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Brad Schoening updated CASSANDRA-18879:
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Description:
Python 3.x introduced many updates to datetime conversion which allows
simplified conversions and zoneinfo replaces pytz.
1. For example, tracing.py defines a function datetime_from_utc_to_local() but
datetime now has a native function astimezone() which will convert UTC to local
time.
Review the following users of datetime which apply conversions:
* cqlshmain.py
* formatting.py
* tracing.py
Example:
{code:java}
>>> a = datetime.datetime.now().astimezone(tz.tzutc())
>>> a
datetime.datetime(2023, 9, 25, 11, 22, 36, 251705, tzinfo=tzutc())
>>> b = a.astimezone()
>>> b
datetime.datetime(2023, 9, 25, 14, 22, 36, 251705,
tzinfo=datetime.timezone(datetime.timedelta(seconds=10800), 'EEST')) {code}
See [PEP 495|https://peps.python.org/pep-0495/]
2. zoneinfo replaces pytz, which is now deprecated. The old pytz is used only
in cqlshmain.py,
was:
Python 3.x introduced many updates to datetime conversion which allows
simplified conversions.
For example, tracing.py defines a function datetime_from_utc_to_local() but
datetime now has a native function astimezone() which will convert UTC to local
time.
Review the following users of datetime which apply conversions:
* cqlshmain.py
* formatting.py
* tracing.py
Example:
{code:java}
>>> a = datetime.datetime.now().astimezone(tz.tzutc())
>>> a
datetime.datetime(2023, 9, 25, 11, 22, 36, 251705, tzinfo=tzutc())
>>> b = a.astimezone()
>>> b
datetime.datetime(2023, 9, 25, 14, 22, 36, 251705,
tzinfo=datetime.timezone(datetime.timedelta(seconds=10800), 'EEST')) {code}
See [PEP 495|https://peps.python.org/pep-0495/]
> Modernize CQLSH datetime conversions
> ------------------------------------
>
> Key: CASSANDRA-18879
> URL: https://issues.apache.org/jira/browse/CASSANDRA-18879
> Project: Cassandra
> Issue Type: Improvement
> Components: CQL/Interpreter
> Reporter: Brad Schoening
> Priority: Low
>
> Python 3.x introduced many updates to datetime conversion which allows
> simplified conversions and zoneinfo replaces pytz.
> 1. For example, tracing.py defines a function datetime_from_utc_to_local()
> but datetime now has a native function astimezone() which will convert UTC to
> local time.
> Review the following users of datetime which apply conversions:
> * cqlshmain.py
> * formatting.py
> * tracing.py
> Example:
> {code:java}
> >>> a = datetime.datetime.now().astimezone(tz.tzutc())
> >>> a
> datetime.datetime(2023, 9, 25, 11, 22, 36, 251705, tzinfo=tzutc())
> >>> b = a.astimezone()
> >>> b
> datetime.datetime(2023, 9, 25, 14, 22, 36, 251705,
> tzinfo=datetime.timezone(datetime.timedelta(seconds=10800), 'EEST')) {code}
> See [PEP 495|https://peps.python.org/pep-0495/]
> 2. zoneinfo replaces pytz, which is now deprecated. The old pytz is used
> only in cqlshmain.py,
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