cmd2 4.0 discussion

[tleonhardt]

Now that cmd2 3.0.0 is out, I'd like to start thinking about cmd2 4.0.0.

Features @kmvanbrunt and I have discussed for 4.x include:

1. Remove explicit dependency on Python's built-in cmd module, but retain backwards compatibility
2. Remove dependency on Python's built-in readline module and replace it with a dependency on prompt-toolkit which is a pure Python replacement for GNU Readline
3. Investigate the option for adding a bottom-bar to display status via prompt-toolkit

Moving to prompt-toolkit and no longer depending on cmd will be a large paradigm shift for cmd2. But this will open doors for easier and more consistent cross-platform support as well as being able to provide some more advanced features that we cannot now.

[github-actions]

🤖 Hi @tleonhardt, I've received your request, and I'm working on it now! You can track my progress in the logs for more details.

[github-actions]

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[tleonhardt]

PR #1539 handles removing the explicit dependency on Python's built-in cmd module