Details
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Bug
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Status: Resolved
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Normal
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Resolution: Won't Fix
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All
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Description
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 installedE: 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.