Updated code_utils.py & local_commandline_code_executor.py (powershell to pwsh)

[abhaymathur21]

Updated the 'powershell' command to 'pwsh' for a ps1 executable file

Why are these changes needed?

I was trying to use autogen to execute terminal commands (eg: git status, ls) but it was throwing an error. So these changes are required if terminal commands are to be executed in the new 7.x version of PowerShell. To execute terminal commands in powershell, autogen first makes a ps1 shell script with those commands written in it and then executes that ps1 shell script. In order for that shell script execution to work, these changes are required.

In March 2020, microsoft released a new version of powershell (7.0) in which the powershell.exe file was renamed to pwsh.exe

https://learn.microsoft.com/en-us/powershell/scripting/whats-new/differences-from-windows-powershell?view=powershell-7.4

In your code, if the user is working in a powershell window and a '.ps1' script is to be executed, your code uses the 'powershell' command to execute it which has now been replaced with 'pwsh' in the new Microsoft PowerShell version 7.0

So in your code I replaced the command 'powershell' with 'pwsh' when a ps1 script has to be executed

I also added the 'pwsh' command to the list of commands in the local_commandline_code_executor.py file

Checks

• I've included any doc changes needed for https://microsoft.github.io/autogen/. See https://microsoft.github.io/autogen/docs/Contribute#documentation to build and test documentation locally.
• I've added tests (if relevant) corresponding to the changes introduced in this PR.
• I've made sure all auto checks have passed.

[codecov-commenter]

Codecov Report

Attention: 4 lines in your changes are missing coverage. Please review.

Comparison is base (c7d9fef) 39.21% compared to head (247d6c2) 50.59%.

Files	Patch %	Lines
autogen/code_utils.py	76.47%	2 Missing and 2 partials ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #1710       +/-   ##
===========================================
+ Coverage   39.21%   50.59%   +11.37%     
===========================================
  Files          57       57               
  Lines        6082     6096       +14     
  Branches     1363     1484      +121     
===========================================
+ Hits         2385     3084      +699     
+ Misses       3502     2766      -736     
- Partials      195      246       +51     

Flag	Coverage Δ
unittests	50.50% <77.77%> (+11.29%)	⬆️

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[ekzhu]

Thanks for the PR! Have you also checked out the new code executor? It’s here https://github.com/microsoft/autogen/blob/main/autogen/coding/local_commandline_code_executor.py

You can use the new code executor like

proxy = CoversableAgent(“proxy”, code_execution_config={“executor”: “commadline-local”})

Perhaps you want to add the handling for powershell there as well? It’s okay to do it in a separate PR.