`az` command error: __init__() got multiple values for keyword argument 'default_completer'

After installing az cli in Ubuntu 17 server, a command to az vm open-port is failing.

Environment summary

• Ubuntu 17 Server VM

Steps to reproduce

• Create a Ubuntu 17 VM from Azure portal
• ssh to it
• Install the azure CLI: sudo apt install azure-cli
• Try to open the RDP port using the command az vm open-port --resource-group your-resource-group-name --name your-vm-name --port 3389 which result in error

__init__() got multiple values for keyword argument 'default_completer'
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/azure/cli/main.py", line 35, in main
    cmd_result = APPLICATION.execute(args)
  File "/usr/lib/python3/dist-packages/azure/cli/core/application.py", line 84, in execute
    self.parser.load_command_table(command_table)
  File "/usr/lib/python3/dist-packages/azure/cli/core/parser.py", line 91, in load_command_table
    enable_autocomplete(self)
  File "/usr/lib/python3/dist-packages/azure/cli/core/parser.py", line 34, in enable_autocomplete
    argcomplete.autocomplete(parser, validator=lambda c, p: c.lower().startswith(p.lower()))
  File "/usr/lib/python3/dist-packages/argcomplete/__init__.py", line 166, in __call__
    default_completer=default_completer)
  File "/usr/lib/python3/dist-packages/azure/cli/core/parser.py", line 30, in __init__
    **kwargs)
TypeError: __init__() got multiple values for keyword argument 'default_completer'

• az --version command works fine:

vm-ubuntu@ubu-17:~$ az --version



Python (Linux) 3.6.3 (default, Oct  3 2017, 21:45:48)
[GCC 7.2.0]

[derekbekoe]

Install the latest CLI through https://docs.microsoft.com/en-us/cli/azure/install-azure-cli-apt?view=azure-cli-latest

This is the same as: https://github.com/Azure/azure-cli/issues/6148#issue-315801494 https://github.com/Azure/azure-cli/issues/4692 https://github.com/Azure/azure-cli/issues/973

In short, Ubuntu shipped with a version of the CLI that’s very old.

[joslij]

No, this is all what az --version outputs. It is just printing blank lines followed by the Python version information.
Seems like all requests to az is failing. Failing silently in case of az --version by outputting the final Python information and caught exception in case of other commands. Any prerequisites before installing azure cli when using bash from Windows machine while SSH ing to a new Ubuntu VM?