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gh-130472: Integrate fancycompleter with the new repl, to get colored tab completions - #130473

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pablogsal merged 49 commits into

python:mainfrom

antocuni:antocuni/fancycompleter

Apr 5, 2026

Merged

gh-130472: Integrate fancycompleter with the new repl, to get colored tab completions#130473
pablogsal merged 49 commits into
python:mainfrom
antocuni:antocuni/fancycompleter

Commits on Apr 5, 2026
- import fancycompleter from https://github.com/pdbpp/fancycompleter/commit/67e3ec128cf8d44be6e48e775234c07f4b23064e
  
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- add copyright notice
  
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- enable FancyCompleter by default, unless you set PYTHON_BASIC_COMPLETER
  
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- WIP: kill a lot of code which is no longer necessary
  
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- force colors for now
  
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- kill the logic to find a readline, we can always use _pyrepl.readline now
  
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- kill LazyVersion
  
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- we surely don't need to support python 2.7 now :)
  
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- kill ConfigurableClass
  
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- better name
  
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- use _colorize instead of our own Color
  
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- WIP: copy&adapt some tests from the original fancycompleter. They don't work because they need to be ported from pytest to unittest
  
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- edited by copilot: move from pytest-style to unittest-style
  
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- don't try to be too clever with exceptions: if a global name raises an exception when evaluated, just color it as None
  
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- no longer needed
  
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- this doesn't test anything meaningful
  
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- fix this test
  
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- fix this test
  
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- Fix this test
  
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- Apply hugovk suggestions from code review
  
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- Apply suggestions from code review
  
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- Apply suggestions from code review
  
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- remove unneeded lazy import
  
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- Update Lib/_pyrepl/fancycompleter.py
  
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- move import to module scope
  
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- move import
  
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- kill this for now, we can redintroduce it later if/when we enable fancycompleter+pdb
  
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- this link is dead, add a comment to explain what it does instead
  
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- fix precommit
  
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- we need to make this import lazy, else we get circular imports
  
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- now that we have themes, we can kill the config object
  
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- style
  
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- 📜🤖 Added by blurb_it.
  
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- fix mypy
  
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- document PYTHON_BASIC_COMPLETER
  
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- try to manually fix the filename
  
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- Typo
  
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- reword
  
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- force PYTHON_COLORS=1 for tests which expects to see colors. Hopefully this fixes the failures on Android CI
  
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- fix it in a different way: just look in the theme to find the expected color. This is both more robust and more correct
  
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- fix precommit
  
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- Update Lib/_pyrepl/fancycompleter.py
  
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- put _colorize.FancyCompleter in alphabetical order w.r.t. the other sections
  
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- get_theme() is relatively expensive, fetch it early and cache it
  
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- base is never used when calling commonprefix, remove it
  
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- Update Lib/_pyrepl/fancycompleter.py
  
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- there is no need to sort words in advance, we can just sort names later
  
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- undo 6a5bcfe9ed: there IS actually a good reason to sort the words in advance, let's add a comment to explain why
  
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- gh-130472: Fix pyrepl fancycompleter edge cases
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gh-130472: Integrate fancycompleter with the new repl, to get colored tab completions by antocuni · Pull Request #130473 · python/cpython · GitHub

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gh-130472: Integrate fancycompleter with the new repl, to get colored tab completions - #130473

gh-130472: Integrate fancycompleter with the new repl, to get colored tab completions#130473pablogsal merged 49 commits intopython:mainpython/cpython:mainfrom antocuni:antocuni/fancycompleterantocuni/cpython:antocuni/fancycompleterCopy head branch name to clipboard

Commits

Commits on Apr 5, 2026

gh-130472: Integrate fancycompleter with the new repl, to get colored tab completions#130473
pablogsal merged 49 commits into
python:mainfrom
antocuni:antocuni/fancycompleter