Python version issue on Cassandra 3.11.2 Searching around I found a lot of thread about this problem (coming from 2012) but I can't find an official solution: running cqlsh.bat 

  File "C:\apache-cassandra-3.11.2\bin\\cqlsh.py", line 146
    except ImportError, e:


The error suggests the script is for python 2.
In system environment I have python3, there is a Cassandra version compatible or there is an official fix for this?
I had the same problem as you.
I had installed python 2.7 version as mentioned at Prerequisites and the error no longer appears