Fix color output logic #19685

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studyingegret wants to merge 24 commits into python:master from studyingegret:color-output-option

studyingegret commented Aug 19, 2025 •

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Fixes #18746

Implements @hepcat72's ideas.

--color-output: Enable color regardless of the environment
--no-color-output: Disable color regardless of the environment
--color-output=auto or flags not given: Detect the environment to decide (note: currently enables color if stdout.isatty() and stderr.isatty()*)
MYPY_FORCE_COLOR: When enabled (see docs/source/command_line.rst), enable colored output regardless of --color-output and --no-color-output
However, all of the above falls to no color if mypy.util.FancyFormatter.detect_terminal_colors cannot detect a terminal color scheme

--color-output=auto is my addition. Also MYPY_FORCE_COLOR is previously undocumented(?), so I documented it.

* Not my addition, it's pre-existing code

Tested python runtests.py self pytest-fast. I added a test mypy/test/test_color_output.py but don't know how to run it.

studyingegret and others added 7 commits

August 18, 2025 22:48


          Some progress

433159b


          More changes

807f022


          Merge remote-tracking branch 'refs/remotes/origin/master' into color-…

2188acb

…output-option


          Document the option

30e8e43


          Fix type errors

ff79d3c


          Merge branch 'master' into color-output-option

5a3d5ff


          [pre-commit.ci] auto fixes from pre-commit.com hooks

b3c4e87

for more information, see https://pre-commit.ci

studyingegret changed the title ~~Color output option~~ Fix color output logic

studyingegret and others added 5 commits

August 19, 2025 09:42


          Fix Ruff lint UP022

068f116


          Merge branch 'color-output-option' of https://github.com/studyingegre…

ecb8e9a

…t/mypy into color-output-option


          [pre-commit.ci] auto fixes from pre-commit.com hooks

cc905b8

for more information, see https://pre-commit.ci


          lint: Delete unused "type: ignore" comment

2dfb813


          Merge branch 'color-output-option' of https://github.com/studyingegre…

0a1351c

…t/mypy into color-output-option

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studyingegret and others added 2 commits

August 19, 2025 10:39


          Some fixes

819b867


          [pre-commit.ci] auto fixes from pre-commit.com hooks

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studyingegret added 2 commits

August 19, 2025 10:59


          Remove MYPY_FORCE_COLOR and FORCE_COLOR in workflows/test.yml (??)

bd4460d

FORCE_COLOR may impact other tools but I'll give it a try anyway ...


          Merge branch 'color-output-option' of https://github.com/studyingegre…

10ca3ab

…t/mypy into color-output-option

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Author

studyingegret commented Aug 19, 2025

Considering the breakage in mypy's tests & primer due to color output changes, I'd like opinions about if a "color legacy mode" (use old color behavior) is required, or if that feels redundant

Note: mypy_primer hardcodes MYPY_FORCE_COLOR

studyingegret added 4 commits

August 19, 2025 12:14


          Delete some workflows for this fork only (?)

91be93d


          Change workflows for this fork only (?)

a873c67


          Merge branch 'color-output-option' of https://github.com/studyingegre…

2fe22d5

…t/mypy into color-output-option

...

af56737

Currently the forked repo is messed up, I plan to test in fork repo's GitHub Actions then clean up the changes.

Author

studyingegret commented Aug 19, 2025

I plan to test the failing run in my fork repo, and clean up the changes made for it afterwards

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studyingegret and others added 2 commits

August 19, 2025 14:02

!!!

0fd4b98


          [pre-commit.ci] auto fixes from pre-commit.com hooks

3e101fe

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studyingegret added 2 commits

August 19, 2025 14:07


          Revert changed workflow files

1bce878


          Merge branch 'color-output-option' of https://github.com/studyingegre…

89c0c93

…t/mypy into color-output-option

Contributor

github-actions bot commented Aug 19, 2025

Diff from mypy_primer, showing the effect of this PR on open source code:

git-revise (https://github.com/mystor/git-revise)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

beartype (https://github.com/beartype/beartype)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

bidict (https://github.com/jab/bidict)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

spack (https://github.com/spack/spack)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

mypy_primer (https://github.com/hauntsaninja/mypy_primer)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

attrs (https://github.com/python-attrs/attrs)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

mypy-protobuf (https://github.com/dropbox/mypy-protobuf)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

bandersnatch (https://github.com/pypa/bandersnatch)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

cibuildwheel (https://github.com/pypa/cibuildwheel)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

typeshed-stats (https://github.com/AlexWaygood/typeshed-stats)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

pydantic (https://github.com/pydantic/pydantic)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

PyGithub (https://github.com/PyGithub/PyGithub)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

optuna (https://github.com/optuna/optuna)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

check-jsonschema (https://github.com/python-jsonschema/check-jsonschema)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

mkosi (https://github.com/systemd/mkosi)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

psycopg (https://github.com/psycopg/psycopg)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

tornado (https://github.com/tornadoweb/tornado)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

pylox (https://github.com/sco1/pylox)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

spark (https://github.com/apache/spark)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

ppb-vector (https://github.com/ppb/ppb-vector)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

mongo-python-driver (https://github.com/mongodb/mongo-python-driver)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

hydpy (https://github.com/hydpy-dev/hydpy)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

prefect (https://github.com/PrefectHQ/prefect)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

aiohttp (https://github.com/aio-libs/aiohttp)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

colour (https://github.com/colour-science/colour)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

dacite (https://github.com/konradhalas/dacite)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

python-chess (https://github.com/niklasf/python-chess)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

pyinstrument (https://github.com/joerick/pyinstrument)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

anyio (https://github.com/agronholm/anyio)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

parso (https://github.com/davidhalter/parso)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

flake8-pyi (https://github.com/PyCQA/flake8-pyi)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

operator (https://github.com/canonical/operator)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

schemathesis (https://github.com/schemathesis/schemathesis)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

meson (https://github.com/mesonbuild/meson)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

sockeye (https://github.com/awslabs/sockeye)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

paasta (https://github.com/yelp/paasta)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

altair (https://github.com/vega/altair)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

xarray-dataclasses (https://github.com/astropenguin/xarray-dataclasses)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

core (https://github.com/home-assistant/core)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

strawberry (https://github.com/strawberry-graphql/strawberry)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

zulip (https://github.com/zulip/zulip)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

build (https://github.com/pypa/build)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

Tanjun (https://github.com/FasterSpeeding/Tanjun)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

starlette (https://github.com/encode/starlette)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

flake8 (https://github.com/pycqa/flake8)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

scrapy (https://github.com/scrapy/scrapy)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

graphql-core (https://github.com/graphql-python/graphql-core)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

cki-lib (https://gitlab.com/cki-project/cki-lib)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

speedrun.com_global_scoreboard_webapp (https://github.com/Avasam/speedrun.com_global_scoreboard_webapp)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

mypy (https://github.com/python/mypy)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

janus (https://github.com/aio-libs/janus)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

python-sop (https://gitlab.com/dkg/python-sop)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

pegen (https://github.com/we-like-parsers/pegen)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

nionutils (https://github.com/nion-software/nionutils)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

DateType (https://github.com/glyph/DateType)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

pyjwt (https://github.com/jpadilla/pyjwt)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

downforeveryone (https://github.com/rpdelaney/downforeveryone)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

asynq (https://github.com/quora/asynq)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

comtypes (https://github.com/enthought/comtypes)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

imagehash (https://github.com/JohannesBuchner/imagehash)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

rich (https://github.com/Textualize/rich)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

urllib3 (https://github.com/urllib3/urllib3)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

aiortc (https://github.com/aiortc/aiortc)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

hydra-zen (https://github.com/mit-ll-responsible-ai/hydra-zen)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

sphinx (https://github.com/sphinx-doc/sphinx)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

setuptools (https://github.com/pypa/setuptools)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

pytest (https://github.com/pytest-dev/pytest)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

rclip (https://github.com/yurijmikhalevich/rclip)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

alectryon (https://github.com/cpitclaudel/alectryon)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

porcupine (https://github.com/Akuli/porcupine)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

mitmproxy (https://github.com/mitmproxy/mitmproxy)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

sympy (https://github.com/sympy/sympy)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

pandas (https://github.com/pandas-dev/pandas)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

steam.py (https://github.com/Gobot1234/steam.py)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

django-stubs (https://github.com/typeddjango/django-stubs)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

svcs (https://github.com/hynek/svcs)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

more-itertools (https://github.com/more-itertools/more-itertools)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

pytest-robotframework (https://github.com/detachhead/pytest-robotframework)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

aioredis (https://github.com/aio-libs/aioredis)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

CPython (Argument Clinic) (https://github.com/python/cpython)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

pybind11 (https://github.com/pybind/pybind11)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

pyproject-metadata (https://github.com/pypa/pyproject-metadata)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

koda-validate (https://github.com/keithasaurus/koda-validate)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

dulwich (https://github.com/dulwich/dulwich)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

CPython (peg_generator) (https://github.com/python/cpython)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

werkzeug (https://github.com/pallets/werkzeug)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

pycryptodome (https://github.com/Legrandin/pycryptodome)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

SinbadCogs (https://github.com/mikeshardmind/SinbadCogs)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

black (https://github.com/psf/black)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

arviz (https://github.com/arviz-devs/arviz)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

dd-trace-py (https://github.com/DataDog/dd-trace-py)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

trio (https://github.com/python-trio/trio)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

pyodide (https://github.com/pyodide/pyodide)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

Expression (https://github.com/cognitedata/Expression)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

discord.py (https://github.com/Rapptz/discord.py)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

jax (https://github.com/google/jax)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

aiohttp-devtools (https://github.com/aio-libs/aiohttp-devtools)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

scipy (https://github.com/scipy/scipy)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

alerta (https://github.com/alerta/alerta)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

pylint (https://github.com/pycqa/pylint)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

ibis (https://github.com/ibis-project/ibis)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

pandas-stubs (https://github.com/pandas-dev/pandas-stubs)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

CPython (cases_generator) (https://github.com/python/cpython)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

com2ann (https://github.com/ilevkivskyi/com2ann)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

packaging (https://github.com/pypa/packaging)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

pyp (https://github.com/hauntsaninja/pyp)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

kornia (https://github.com/kornia/kornia)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

dedupe (https://github.com/dedupeio/dedupe)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

websockets (https://github.com/aaugustin/websockets)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

kopf (https://github.com/nolar/kopf)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

stone (https://github.com/dropbox/stone)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

manticore (https://github.com/trailofbits/manticore)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

archinstall (https://github.com/archlinux/archinstall)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

pywin32 (https://github.com/mhammond/pywin32)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

jinja (https://github.com/pallets/jinja)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

scikit-learn (https://github.com/scikit-learn/scikit-learn)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

zope.interface (https://github.com/zopefoundation/zope.interface)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

mkdocs (https://github.com/mkdocs/mkdocs)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

apprise (https://github.com/caronc/apprise)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

PyWinCtl (https://github.com/Kalmat/PyWinCtl)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

scipy-stubs (https://github.com/scipy/scipy-stubs)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

pwndbg (https://github.com/pwndbg/pwndbg)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

pandera (https://github.com/pandera-dev/pandera)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

yarl (https://github.com/aio-libs/yarl)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

httpx-caching (https://github.com/johtso/httpx-caching)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

poetry (https://github.com/python-poetry/poetry)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

materialize (https://github.com/MaterializeInc/materialize)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

paroxython (https://github.com/laowantong/paroxython)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

zipp (https://github.com/jaraco/zipp)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

async-utils (https://github.com/mikeshardmind/async-utils)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

pip (https://github.com/pypa/pip)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

ignite (https://github.com/pytorch/ignite)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

openlibrary (https://github.com/internetarchive/openlibrary)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

rotki (https://github.com/rotki/rotki)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

nox (https://github.com/wntrblm/nox)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

cloud-init (https://github.com/canonical/cloud-init)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

schema_salad (https://github.com/common-workflow-language/schema_salad)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

itsdangerous (https://github.com/pallets/itsdangerous)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

isort (https://github.com/pycqa/isort)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

antidote (https://github.com/Finistere/antidote)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

pyppeteer (https://github.com/pyppeteer/pyppeteer)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

static-frame (https://github.com/static-frame/static-frame)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

freqtrade (https://github.com/freqtrade/freqtrade)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

python-htmlgen (https://github.com/srittau/python-htmlgen)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

dragonchain (https://github.com/dragonchain/dragonchain)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

boostedblob (https://github.com/hauntsaninja/boostedblob)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

artigraph (https://github.com/artigraph/artigraph)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

xarray (https://github.com/pydata/xarray)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

scikit-build-core (https://github.com/scikit-build/scikit-build-core)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

bokeh (https://github.com/bokeh/bokeh)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

twine (https://github.com/pypa/twine)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

AutoSplit (https://github.com/Toufool/AutoSplit)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

cwltool (https://github.com/common-workflow-language/cwltool)
+ warning: failed to detect a suitable terminal color scheme but colored output is requested
+ warning: failed to detect a suitable terminal color scheme but colored output is requested

Author

studyingegret commented Aug 19, 2025

This PR is now ready for review.

Collaborator

cdce8p commented Aug 19, 2025

Haven't had the time to check it but how do these options interact with FORCE_COLOR / NO_COLOR env vars from Python itself? https://docs.python.org/3.13/using/cmdline.html#controlling-color

cdce8p added the topic-configuration label

Author

studyingegret commented Aug 20, 2025

@cdce8p FORCE_COLOR is used as a fallback of MYPY_FORCE_COLOR when it isn't set (in which case it is treated in the same way as MYPY_FORCE_COLOR). It's legacy logic.
NO_COLOR is not checked.

ilevkivskyi reviewed

View reviewed changes

mypy/dmypy_server.py

                       options.local_partial_types = True
                       self.status_file = status_file
+                      # Type annotation needed for mypy (Pyright understands this)

Member

ilevkivskyi Aug 20, 2025

LOL, are you serious?

Member

ilevkivskyi commented Aug 20, 2025

The fact that few people don't like how it works now is not a reason to make breaking changes.

ilevkivskyi closed this

Author

studyingegret commented Aug 20, 2025 •

edited

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@ilevkivskyi Just for your opinion, what do you think about requiring an option to use the color output behavior in this PR? (or maybe adding --color-output=force will be enough to address the use case in #18746)

studyingegret mentioned this pull request

Add --color-output=force that colors output regardless if it is going to a terminal #19703

Closed

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topic-configuration