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gh-145217: Add colour to pprint output#145218

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hugovk wants to merge 6 commits intopython:mainfrom
hugovk:3.15-pprint-colour
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gh-145217: Add colour to pprint output#145218
hugovk wants to merge 6 commits intopython:mainfrom
hugovk:3.15-pprint-colour

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@hugovk hugovk commented Feb 25, 2026 •
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Example:

import pprint

data = ["spam", "eggs", ("lumberjack", "knights"), "ni", 42, None]
data.insert(0, data)

pprint.pp(data)
pprint.pprint(data)
pprint.PrettyPrinter().pprint(data)
image

📚 Documentation preview 📚: https://cpython-previews--145218.org.readthedocs.build/

@hugovk hugovk requested a review from AA-Turner as a code owner February 25, 2026 14:20
@hugovk hugovk added type-feature A feature request or enhancement stdlib Standard Library Python modules in the Lib/ directory labels Feb 25, 2026
@bedevere-app bedevere-app bot mentioned this pull request Feb 25, 2026
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StanFromIreland
StanFromIreland reviewed Apr 9, 2026
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Comment thread Lib/pprint.py
from io import StringIO as _StringIO

lazy import _colorize
lazy from _pyrepl.utils import disp_str, gen_colors
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@StanFromIreland StanFromIreland Apr 9, 2026

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Steve won't be happy: #145035

(We could move it, #142699)

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@hugovk hugovk Apr 18, 2026

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Is this a blocker?

Or if that move later happens, we can then update this code in a similar way?

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Looking at #145159 's scope, it seems so, but it's up to @zooba.

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@johnslavik johnslavik self-requested a review April 10, 2026 10:13
StanFromIreland
StanFromIreland reviewed Apr 18, 2026
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Comment thread Doc/whatsnew/3.15.rst
@hugovk hugovk mentioned this pull request Apr 18, 2026
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@AA-Turner AA-Turner Awaiting requested review from AA-Turner AA-Turner is a code owner

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