[IMPALA-11997] impala-shell: base64.encodestring has been removed in python3.9

• Type: Task
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: Impala 4.2.0
• Fix Version/s: Impala 4.3.0
• Component/s: Clients
• Labels: python3
• Target Version: Impala 4.3.0
• Epic Color: ghx-label-14
• Assignee: Michael Smith
• Reporter: Abhishek Rawat
• Created: 11/Mar/23 01:40
• Updated: 20/Dec/23 00:24
• Resolved: 21/Mar/23 16:22

Description

When using impala-shell v4.2 with python 3.10 I get following error:

Starting Impala Shell with LDAP-based authentication using Python 3.10.10
SSL is enabled. Impala server certificates will NOT be verified (set --ca_cert to change)
LDAP password for csso_arawat: 
Warning: --connect_timeout_ms is currently ignored with HTTP transport.
Error connecting: AttributeError, module 'base64' has no attribute 'encodestring'
klist: Cache not found: API:2AC1D3D7-13D7-4DD7-BEA7-DF0F4A32A462
***********************************************************************************
Welcome to the Impala shell.
(Impala Shell v4.3.0a1 (cda4114) built on Thu Feb  2 18:18:16 PST 2023)

The HISTORY command lists all shell commands in chronological order. 

I only found one hit:

root@impala:~/Impala# git grep -i 'encodestring'
shell/impala_client.py:      auth = base64.encodestring(user_passwd.encode()).decode().strip('\n') 

We should probably use 'base64.encodebytes' instead.