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https://issues.apache.org/jira/browse/CASSANDRA-15659?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Eduard Tudenhoefner updated CASSANDRA-15659:
--------------------------------------------
Description:
h2. From mailing list:
[https://lists.apache.org/thread.html/r377099b632c62b641e4feef5b738084fc5369b0c7157fae867853597%40%3Cdev.cassandra.apache.org%3E]
As of today (24/3/2020) and current trunk, there is Python 3.6 supported (1)
but there is not any 3.6 version ootb in Debian for example. E.g. Buster has
Python 3.7 and other (recent) releases have version 2.7. This means that if one
wants to use Python 3 in Debian, he has to use 3.6 but it is not in the
repository so he has to download / compile / install it on his own.
There should be some sane Python 3 version supported which is as well present
in Debian repository (or requirement to run with 3.6 should be relaxed) .
(1)
[https://github.com/apache/cassandra/blob/bf9a1d487b9ba469e8d740cf7d1cd419535a7e79/bin/cqlsh#L57-L65]
h2. Summary of work that was done:
I relaxed the requirement of *cqlsh* only working with Python 2.7 & 3.6 by
allowing Python 3.6+.
Note that I left the constraint for Python 3.6 being the minimum Python3
version.
As [~ptbannister] pointed out, we could remove the Python 3.6 min version once
we remove Python 2.7 support, as otherwise testing with lots of different
Python versions will get costly.
2 Dockerfiles were added in *pylib* for minimal local testing of *cqlsh*
starting up with Python 3.7 & 3.8 and that both revealed
CASSANDRA-15572 and CASSANDRA-15573.
CASSANDRA-15572 was fixed here as it was a one-liner. And I'm going to tackle
CASSANDRA-15573 later.
Python 3.8 testing was added to the CircleCI config so that we can actually see
what else breaks with newer Python versions.
A new Docker images with Ubuntu 19.10 was required for testing
([https://github.com/apache/cassandra-builds/pull/17]). This docker image sets
up Python 2.7/3.6/3.7/3.8 with their respective virtual environments, which are
then being used by the CircleCI yaml.
The image *spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306*
couldn't be updated unfortunately because it can't be built anymore, due to
Ubuntu 18.10 being EOL.
was:
h2. From mailing list:
[https://lists.apache.org/thread.html/r377099b632c62b641e4feef5b738084fc5369b0c7157fae867853597%40%3Cdev.cassandra.apache.org%3E]
As of today (24/3/2020) and current trunk, there is Python 3.6 supported (1)
but there is not any 3.6 version ootb in Debian for example. E.g. Buster has
Python 3.7 and other (recent) releases have version 2.7. This means that if one
wants to use Python 3 in Debian, he has to use 3.6 but it is not in the
repository so he has to download / compile / install it on his own.
There should be some sane Python 3 version supported which is as well present
in Debian repository (or requirement to run with 3.6 should be relaxed) .
(1)
[https://github.com/apache/cassandra/blob/bf9a1d487b9ba469e8d740cf7d1cd419535a7e79/bin/cqlsh#L57-L65]
h2. Summary of work that was done:
I relaxed the requirement of *cqlsh* only working with Python 2.7 & 3.6 by
allowing Python 3.6+.
Note that I left the constraint for Python 3.6 being the minimum Python3
version.
As [~ptbannister] pointed out, we could remove the Python 3.6 min version once
we remove Python 2.7 support, as otherwise testing with lots of different
Python versions will get costly.
2 Dockerfiles were added in *pylib* for minimal local testing of *cqlsh*
starting up with Python 3.7 & 3.8 and that both revealed
CASSANDRA-15572 and CASSANDRA-15573.
CASSANDRA-15572 was fixed here as it was a one-liner. And I'm going to tackle
CASSANDRA-15573 later.
Python 3.8 testing was added to the CircleCI config so that we can actually see
what else breaks with newer Python versions.
A new Docker images with Ubuntu 19.10 was required
(https://github.com/apache/cassandra-builds/pull/17). This docker image sets up
Python 2.7/3.6/3.7/3.8 with their respective virtual environments, which are
then being used by the CircleCI yaml.
The image *spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306*
couldn't be updated unfortunately because it can't be built anymore, due to
Ubuntu 18.10 being EOL.
> Better support of Python 3 for cqlsh
> ------------------------------------
>
> Key: CASSANDRA-15659
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15659
> Project: Cassandra
> Issue Type: Task
> Components: Tool/cqlsh
> Reporter: Stefan Miklosovic
> Assignee: Eduard Tudenhoefner
> Priority: Normal
> Labels: pull-request-available
> Fix For: 4.0-alpha
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> h2. From mailing list:
> [https://lists.apache.org/thread.html/r377099b632c62b641e4feef5b738084fc5369b0c7157fae867853597%40%3Cdev.cassandra.apache.org%3E]
>
> As of today (24/3/2020) and current trunk, there is Python 3.6 supported (1)
> but there is not any 3.6 version ootb in Debian for example. E.g. Buster has
> Python 3.7 and other (recent) releases have version 2.7. This means that if
> one wants to use Python 3 in Debian, he has to use 3.6 but it is not in the
> repository so he has to download / compile / install it on his own.
> There should be some sane Python 3 version supported which is as well present
> in Debian repository (or requirement to run with 3.6 should be relaxed) .
> (1)
> [https://github.com/apache/cassandra/blob/bf9a1d487b9ba469e8d740cf7d1cd419535a7e79/bin/cqlsh#L57-L65]
> h2. Summary of work that was done:
> I relaxed the requirement of *cqlsh* only working with Python 2.7 & 3.6 by
> allowing Python 3.6+.
> Note that I left the constraint for Python 3.6 being the minimum Python3
> version.
> As [~ptbannister] pointed out, we could remove the Python 3.6 min version
> once we remove Python 2.7 support, as otherwise testing with lots of
> different Python versions will get costly.
> 2 Dockerfiles were added in *pylib* for minimal local testing of *cqlsh*
> starting up with Python 3.7 & 3.8 and that both revealed
> CASSANDRA-15572 and CASSANDRA-15573.
> CASSANDRA-15572 was fixed here as it was a one-liner. And I'm going to
> tackle CASSANDRA-15573 later.
> Python 3.8 testing was added to the CircleCI config so that we can actually
> see what else breaks with newer Python versions.
> A new Docker images with Ubuntu 19.10 was required for testing
> ([https://github.com/apache/cassandra-builds/pull/17]). This docker image
> sets up Python 2.7/3.6/3.7/3.8 with their respective virtual environments,
> which are then being used by the CircleCI yaml.
> The image *spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306*
> couldn't be updated unfortunately because it can't be built anymore, due to
> Ubuntu 18.10 being EOL.
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