Trying to use cqlsh leads to ImportError: No module named concurrent.futures

[viertelb]

Bug Report

Describe the bug
Trying to use cqlsh leads to error propabably related to Python on two systems with Ubuntu

cqlsh <URL> <PORT>
Traceback (most recent call last):
  File "/snap/cqlsh/172/bin/cqlsh", line 143, in <module>
    from cassandra.cluster import Cluster
  File "cassandra/cluster.py", line 24, in init cassandra.cluster
ImportError: No module named concurrent.futures

Environment (please complete the following information):

I installed with snap install cqlsh. No other option is availlable on Ubuntu 23.04, especially no apt package.

First system is a VM with GUI, second one a server I use via SSH:

Linux ...-VirtualBox 5.19.0-41-generic #42-Ubuntu SMP PREEMPT_DYNAMIC Mon Apr 17 19:17:03 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux

 $ python --version
Python 3.10.7

On the Ubuntu server no python seems to be installed:

Linux ... 5.15.0-69-generic #76-Ubuntu SMP Fri Mar 17 17:19:29 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
root@host:~# which python
root@host:~# 

[olim7t]

Hi @viertelb,

I couldn't reproduce your issue on a fresh 23.04 install in a Vagrant VM. But it looks like a python version issue or missing library (on your server machine, python not being available would definitely be a problem).

This Github project deals mostly with the Kubernetes operator, for cqlsh-specific questions the Cassandra user mailing list or Slack will probably be more helpful, see how to connect here.