[DRAFT] Migrate from using readline to prompt-toolkit#1553

Draft

tleonhardt wants to merge 36 commits intomainfrom

Commits on Dec 26, 2025

This is a very early non-working start of porting to use prompt-toolkit
tleonhardt
committed

Commits on Dec 29, 2025

Fix complete_tester helper function in conftest.py so it passes all of the correct arguments to app.complete()
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Remove remaining use of readline in cmd2.py and replace it with prompt_toolkit
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Replace readline with prompt-toolkit in documentation and such
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Fix one history test
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Remove reference to readline from test_history.py
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prompt-toolkit history now properly working with a persistent history file
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Deleted rl_utils.py and removed all use of it
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Add test_escaping_prompt test back but skip it for now with a TODO
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Fix tests in tests_cmd2.py to monkeypatch cmd2.Cmd.read_input instead of mocking the built-in input function.
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Fix remaining tests in test_cmd2.py other than the one that is skipped
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Renamed test_escaping_prompt to test_visible_prompt and fixed it to work with prompt-toolkit
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Fixed tests in test_run_pyscript for prompt-toolkit migration
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Added test_pt_utils.py with unit tests to fully cover code in cmd2/pt_utils.py
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Add 4.0.0 changes to CHANGELOG with details on readline migration to prompt-toolkit
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Merge branch 'main' into prompt-toolkit
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Fixed bug where argument hints weren't displaying in color.
tleonhardt
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Commits on Dec 30, 2025