Description

ambv

opened on Feb 22, 2025

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The current tab-completer is somewhat basic. There's a pyrepl-based library called fancycompleter that allows for context-aware colorful tab completions. Much more useful and looks better.

Linked PRs

• gh-130472: Integrate fancycompleter with the new repl, to get colored tab completions #130473
• gh-130472: Remove readline-only hacks from PyREPL completions #148161
• gh-130472: Use fancycompleter in import completions #148188

Reacted by Hugo van Kemenade and Daniele

Activity

1. ambv

   added

   topic-replRelated to the interactive shellRelated to the interactive shell

   type-featureA feature request or enhancementA feature request or enhancement

   on Feb 22, 2025
2. picnixz

   added

   stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

   on Feb 22, 2025
3. gaogaotiantian commented on Feb 22, 2025

   

   gaogaotiantian

   on Feb 22, 2025

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   I actually have a question about the overall color-related features - how many colors can we use at this point, and how should we use them? If I remember correctly, it took a while to land on this magenda color for some stuff, and we are planning to add much more colors for completion? How much we need to think about for color-blindness or different terminal backgrounds to use new colors? I always have this question because pdb could really use some colors, but it doesn't seem like we have a consensus about how we can use them.
4. ambv commented on Feb 23, 2025

   

   ambv

   on Feb 23, 2025

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   @gaogaotiantian the plan is to add theming support in PYTHONSTARTUP. I'll be working on this in March.
5. gaogaotiantian commented on Feb 23, 2025

   

   gaogaotiantian

   on Feb 23, 2025

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   Got it, thanks!
6. pablogsal

   added 2 commits that reference this issue on Apr 5, 2026

   pythongh-130472: Fix pyrepl fancycompleter edge cases

   cba06ba

   gh-130472: Integrate fancycompleter with the new repl, to get colored…

   1c4408a
7. StanFromIreland commented on Apr 6, 2026

   

   StanFromIreland

   on Apr 6, 2026

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   This introduced some regressions:

   Screencast.From.2026-04-06.10-41-01.mp4

   (yes, they are blinking)
8. hugovk commented on Apr 6, 2026

   

   hugovk

   on Apr 6, 2026

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   No blinking here, but webbrowser.GenericBrowser is not visible:

   

   And the strikethrough, italic, underline and dimmed text is surprising.
9. StanFromIreland commented on Apr 6, 2026

   

   StanFromIreland

   on Apr 6, 2026

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   I found the root cause for some issues, though contrast issues remain: https://github.com/python/cpython/pull/130473/changes#r3038878981
10. pablogsal commented on Apr 6, 2026

    

    pablogsal

    on Apr 6, 2026

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    Looking into it
11. pablogsal

    added a commit that references this issue on Apr 6, 2026

    pythongh-130472: Remove readline-only hacks from PyREPL completions

    a7f83bd
12. pablogsal commented on Apr 6, 2026

    

    pablogsal

    on Apr 6, 2026

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    I think #148161 should do the trick
13. pablogsal

    added 2 commits that reference this issue on Apr 6, 2026

    pythongh-130472: Show PyREPL completion menus left to right

    986bc7c

    gh-130472: Remove readline-only hacks from PyREPL completions (#148161)

    f8293fa
14. pablogsal

    closed this as completedon Apr 6, 2026
15. tomasr8 commented on Apr 6, 2026

    

    tomasr8

    on Apr 6, 2026

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    If it's ok, I'll reopen this for #148188 since it's related (I can also open a separate issue if you prefer though)
16. tomasr8

    reopened this on Apr 6, 2026
17. ljfp

    added 2 commits that reference this issue on Apr 25, 2026

    pythongh-130472: Integrate fancycompleter with the new repl, to get c…

    11843e1

    pythongh-130472: Remove readline-only hacks from PyREPL completions (p…

    b7788da
18. pablogsal

    added a commit that references this issue on May 5, 2026

    gh-130472: Use fancycompleter in import completions (#148188)

    ed99680
19. StanFromIreland

    closed this as completedon May 9, 2026

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