[Release] DataStax Python Driver Version 3.10.0

[Jim Witschey]

Hi all,

We've released version 3.10.0 of the DataStax Python Driver for Apache
Cassandra.

This release focuses primarily on bugfixes. You can find the changelog
for this release reproduced below, or here:

https://github.com/datastax/python-driver/blob/master/CHANGELOG.rst#3100

Many thanks to all who educated fellow community members, contributed
code and tests, wrote documentation, made feature requests, and
reported bugs. We encourage you to stay involved:

- Discuss the driver and ask questions:
- python-driver-user mailing list:
https://groups.google.com/a/lists.datastax.com/forum/#!forum/python-driver-user
- #datastax-drivers channel, DataStax Academy Slack:
https://academy.datastax.com/slack
- Review and contribute source code and documentation:
https://github.com/datastax/python-driver/
- Report issues on JIRA: https://datastax-oss.atlassian.net/browse/PYTHON

Best,

Jim Witschey

Features
--------
* Add Duration type to cqlengine (PYTHON-750)
* Community PR review: Raise error on primary key update only if its
value changed (PYTHON-705)
* get_query_trace() contract is ambiguous (PYTHON-196)

Bug Fixes
---------
* Queries using speculative execution policy timeout prematurely (PYTHON-755)
* Fix `map` where results are not consumed (PYTHON-749)
* Driver fails to encode Duration's with large values (PYTHON-747)
* UDT values are not updated correctly in CQLEngine (PYTHON-743)
* UDT types are not validated in CQLEngine (PYTHON-742)
* to_python is not implemented for types columns.Type and columns.Date
in CQLEngine (PYTHON-741)
* Clients spin infinitely trying to connect to a host that is drained
(PYTHON-734)
* Resulset.get_query_trace returns empty trace sometimes (PYTHON-730)
* Memory grows and doesn't get removed (PYTHON-720)
* Fix RuntimeError caused by change dict size during iteration (PYTHON-708)
* fix ExponentialReconnectionPolicy may throw OverflowError problem (PYTHON-707)
* Avoid using nonexistent prepared statement in ResponseFuture (PYTHON-706)

Other
-----
* Update README (PYTHON-746)
* Test python versions 3.5 and 3.6 (PYTHON-737)
* Docs Warning About Prepare "select *" (PYTHON-626)
* Increase Coverage in CqlEngine Test Suite (PYTHON-505)
* Example SSL connection code does not verify server certificates (PYTHON-469)

[swaapnika guntaka]

Is Cassandra-Python driver 3.10 still available for download?

I found this 3.10-backports-from-3.11 on github. but I'm facing Attribute error('Distribution' object has no attribute '_egg_fetcher') issues with this when I run the setup.py.

[Jim Witschey]

We addressed this in DataStax Academy Slack, but just to close the
loop on these questions in this thread:

> Is Cassandra-Python driver 3.10 still available for download?

You can still install version 3.10 with `pip install
cassandra-driver==3.10`. The PyPI page for our modules only display
the most recent version, but older releases are still available there.

> I found this 3.10-backports-from-3.11 on github.

The `3.10-backports-from-3.11` tag is not a proper release -- it's
just a tag for our internal docs-building system. Best,

Jim