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https://issues.apache.org/jira/browse/CASSANDRA-16641?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Paul Chandler updated CASSANDRA-16641:
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Since Version: 4.0-rc1
> Cassandra 4.0 with python 2.7 on Ubuntu
> -----------------------------------------
>
> Key: CASSANDRA-16641
> URL: https://issues.apache.org/jira/browse/CASSANDRA-16641
> Project: Cassandra
> Issue Type: Bug
> Reporter: Paul Chandler
> Priority: Normal
>
> We have been testing with 4.0~beta2 in our setup for a few weeks and all has
> gone very smoothly, however when tried to install 4.0~rc1 we ran into
> problems with python versions.
>
> We are on Ubuntu 16.04.7 LTS so use apt to install Cassandra, and this now
> gives the following error:
>
> {{The following packages have unmet dependencies:}}{{ cassandra : Depends:
> python3 (>= 3.6) but 3.5.1-3 is to be installed}}{{E: Unable to correct
> problems, you have held broken packages.}}
>
> Looking at the apt packaging the requirement for python has changed from 2.7
> to 3.6 between beta4 and rc1.
>
> I have found https://issues.apache.org/jira/browse/CASSANDRA-16396 which says
> it needed to be python 3.6, however reading this ticket this seems to imply
> 2.7 is still supported https://issues.apache.org/jira/browse/CASSANDRA-15659
>
> Also the code for for cqlsh says it supports 2.7 as well:
> [https://github.com/apache/cassandra/blob/b0c50c10dbc443a05662b111a971a65cafa258d5/bin/cqlsh#L65]
>
> All our clusters are currently on Ubuntu 16.04 which does not come with
> python 3.6, so this is going to be a major pain to upgrade them to 4.0, as I
> don't want to install it via a third party PPA if I can help it.
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