[Tracker] WoA🐍Libs🦾

[khmyznikov]

WoA🐍Libs🦾

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Python libs missing natively on Windows Arm64

These lists are designed to prioritize libraries that need to be fixed for Python development natively on WoA.
Based on this public list of top 1000 python packages by downloads. Orange 11% packages were investigated by automatic tests.

As of Dec 15, 2025, these lists are only the 7% of top 1000, the rest 93% already have native wheels or don't need them.

⬛ - No Win binaries / other hard block
❌ - No win_arm64 binaries/wheels available on PyPi
⁉️ - No response from maintainers
🟡 - Contribution was accepted, waiting for PyPi release
✅ - Globally available via PyPi

Contribution instructions

If you are already working on some of these libraries or just starting, here's how you can help others track your progress:

1. Request access to this repo in the comments.
2. Create a sub-issue with package name.
3. Copy all information from table and and sync any additional.
4. Work and share your progress in the issue. The issue can be closed only after the wheel lands on PyPi.

Libraries what not easy to build locally

Required noticable effort to build locally and contribute back to the community.
Some of the packages are blocked by others, making their build complexity unclear.

Done	Tool	Issue	PR	Depend	Notes	Assigned	ETA/Wheel
🟡	cryptography	🔗Issue	🔗PR	-	Support dropped due GH image issues	-	🔗pypi
❌	pyarrow	🔗Issue	🔗PR	-	QC: PR work is in progress	googleapis/python-crc32c#25	-
✅	scipy	🔗Issue	🔗PR	numpy	PR merged	googleapis/python-crc32c#8	🔗pypi
✅	lxml	-	🔗PR	-	-	-	🔗pypi
⬛	grpcio	🔗Issue	🔗PR	-	RP rejected. Infra blocked.	googleapis/python-crc32c#6	🔗temp
❌	grpcio-tools	-	-	grpcio	Coupled with grpcio	-	-
✅	pynacl	🔗Issue	🔗PR	-	-	-	🔗pypi
✅	scikit-learn	🔗Issue	🔗PR	scipy	PR merged	googleapis/python-crc32c#10	🔗pypi
🟡	snowflake-connector-python	🔗Issue	🔗PR	cryptography	Testing is required to accept	googleapis/python-crc32c#27	No ETA
🟡	shapely	🔗Issue	🔗PR	-	-	googleapis/python-crc32c#13	~Q2 26
⬛	uvloop	🔗Issue	🔗PR	-	Do not support Windows at all. Alternative: winloop	-	-
❌	numba	🔗Issue	🔗PR	llvmlite, conda	QC: PR ready	googleapis/python-crc32c#37	-
✅	sentencepiece	🔗Issue	🔗PR	-	-	-	🔗pypi
❌	llvmlite	🔗Issue	Working on PR	Conda	QC: VCPKG approach declined, blocked on conda	googleapis/python-crc32c#24	-
⬛	triton	-	-	-	Do not support Windows at all. Alternative: triton-windows	-	-
❌	triton-windows	🔗Issue	-	-	Support only x86 and Nvidia GPU, QC started investigation	googleapis/python-crc32c#40	-
🟡	h5py	🔗Issue	🔗PR	-	Support disabled due CI failure	googleapis/python-crc32c#29	🔗pypi
❌	tensorflow	🔗Issue	-	-	Google's library	-	-
❌	confluent-kafka	🔗Issue	🔗PR	-	QC: no response from maintainers	googleapis/python-crc32c#42	-
❌	pymssql	-	-	-	mssql don't support win-arm	-	-
❌	opencv-python	🔗Issue	🔗PR	-	-	googleapis/python-crc32c#36	-
🟡	torchvision	-	-	PR merged	Nightly wheels available	-	-
🟡	statsmodels	🔗Issue	-	NumPy issues holds the enablement	-	-
✅	spacy	🔗Issue	-	blis	-		🔗pypi
✅	scikit-image	🔗Issue	🔗PR	-	-	googleapis/python-crc32c#17	🔗pypi
✅	ddtrace	🔗Issue	🔗PR	libddwaf	-	googleapis/python-crc32c#30	🔗pypi
⬛	mysqlclient	-	-	-	mysql don't support win-arm. Linaro tried initial support, patch was refused. MariaDB is much better candidate	-	-
❌	onnxruntime	🔗Issue	-	-	Alternative package is onnxruntime-qnn There's confusion between the packages	-	-
✅	duckdb	🔗Issue	-	-	-	-	🔗pypi
🟡	blis	🔗Issue	🔗PR	-	Release waits for free-threading	googleapis/python-crc32c#19	Q1 2026
🟡	thinc	🔗Issue	🔗PR	-	Only 8.x available on pypi	googleapis/python-crc32c#28	🔗pypi
❌	apache-beam	🔗Issue	-	grpcio	QC: started investigation	googleapis/python-crc32c#39	-
❌	psycopg-binary	🔗Issue	-	-	Blocked by libpq, discussion	-	-
✅	pyproj	🔗Issue	🔗PR	-	-	googleapis/python-crc32c#14	🔗pypi
⬛	torchaudio	-	🔗PR	-	Work stopped until the end of Y26 due refactoring effort from maintainers	-	-
❌	tensorflow-io-gcs-filesystem	-	-	-	Google's library	-	-
✅	google-re2	🔗Issue	🔗PR	-	-	googleapis/python-crc32c#23	🔗pypi
❌	pymupdf	🔗Issue	🔗PR	-	QC: no response from maintainers	-	-
❌	oracledb	-	-	cryptography	Oracle DB don't support win-arm64. Coupled with cryptography	-	-
❌	ray	🔗Issue	-	-	QC: Lack of grpcio holds this enablement, in discussion with maintainers	-	-
❌	shap	-	-	numba	QC: Waiting for numba enablement	googleapis/python-crc32c#38	-
❌	tensorflow-text	-	-	-	Google's library	-	-
✅	h3	🔗Issue	🔗PR	-	-	googleapis/python-crc32c#20	🔗pypi
✅	faiss-cpu	🔗Issue	-	-	-	googleapis/python-crc32c#16	🔗pypi
✅	onnx	-	-	-	-	-	🔗pypi
❌	jaxlib	🔗Issue	-	SciPy	Google's library	-	-
❌	deltalake	-	-	pyarrow	Coupled with pyarrow	-	-
✅	xgboost-cpu	🔗Issue	🔗PR	-	-	googleapis/python-crc32c#22	🔗pypi
❌	librosa	-	-	Numba	Coupled with Numba	-	-
❌	bitsandbytes	-	-	-	-	-	-
❌	petf	-	-	-	-	-	-

Libraries don't have wheels, but they are easy installed by PyPi

Potentially could be easily enabled due to a noncomplex build process.
This list was not processed; only granular updates related to previous table.
Still can be a blocker for other packages since local build process increases complexity of CIs and execution time.

Done	Tool	Issue	PR	Depend	Notes	Assigned	ETA/Wheel
✅	pandas	🔗Issue	🔗PR	numpy	-	-	🔗pypi
✅	numpy	🔗Issue	🔗PR	-	-	-	🔗pypi
✅	pyyaml	🔗Issue	🔗PR	-	-	googleapis/python-crc32c#31	🔗pypi
✅	cffi	🔗PR	-	-	-	-	🔗pypi
❌	soundfile	🔗Issue	🔗PR	Depends on libsndfile/libsndfile#1117	WIP	-	-
✅	nh3	-	🔗PR	-	required by twine, which is useful for CI	-	🔗pypi
✅	markupsafe	-	🔗PR	-	-	-	🔗pypi
🟡	aiohttp	-	-	-	Waiting for release	-	-
✅	propcache	-	🔗PR	-	-	-	🔗pypi
✅	multidict	-	🔗PR	-	PR merged	-	🔗pypi
✅	coverage	-	🔗PR	-	-	-	🔗pypi
✅	psutil	🔗Issue	🔗PR	-	PR merged	-	🔗pypi
❌	greenlet	🔗Issue	-	-	-	-	-
✅	rpds-py	🔗Issue	🔗PR	-	-	-	🔗pypi
✅	msgpack	-	🔗PR	-	PR merged	-	🔗pypi
✅	regex	-	🔗PR	-	-	-	🔗pypi
✅	bcrypt	-	🔗PR	-	-	googleapis/python-crc32c#18	🔗pypi
❌	google-crc32c	🔗Issue	🔗PR	-	-	-	-
✅	matplotlib	🔗Issue	🔗PR	-	-	-	🔗pypi
✅	contourpy	-	-	-	-	-	🔗pypi
⬛	ruamel-yaml-clib	-	-	-	No contribution points discovered, skipped	-	-
✅	winloop	🔗Issue	🔗PR	-	-	-	🔗pypi
✅	zstandard	-	-	-	-	-	🔗pypi
✅	tornado	🔗Issue	🔗PR	-	-	-	🔗pypi
✅	orjson	-	-	-	-	-	🔗pypi
✅	tokenizers	-	🔗PR	-	PR merged	googleapis/python-crc32c#11	🔗pypi
✅	pycryptodome	-	-	-	-	-	🔗pypi
✅	pymongo	🔗Issue	🔗PR	-	-	-	🔗pypi
✅	pycryptodomex	-	-	-	-	-	🔗pypi
✅	jiter	-	-	-	-	-	🔗pypi
❌	setproctitle	-	🔗PR	-	-	-	-
✅	thriftpy2	-	-	-	-	-	🔗pypi
❌	tiktoken	-	🔗PR	-	-	googleapis/python-crc32c#12	-
❌	zope-interface	-	🔗PR	-	QC:WIP	-	-
🟡	safetensors	🔗Issue	-	-	-	-	-
❌	diffusers	-	-	jax, safetensors	-	-	-
✅	argon2-cffi-bindings	🔗Issue	🔗PR	-	-	-	🔗pypi
❌	httptools	-	🔗PR	-	-	-	-
✅	pyodbc	-	🔗PR	-	-	-	🔗pypi
✅	libcst	-	-	-	-	-	🔗pypi
🟡	fastavro	-	🔗PR	-	QC: WIP	-	-
🟡	brotli	🔗Issue	🔗PR	-	-	-	-
✅	ujson	-	-	-	-	-	🔗pypi
❌	gevent	-	-	-	QC: WIP	-	-
🟡	ijson	-	🔗PR	-	PR merged	-	-
✅	preshed	-	-	-	-	-	🔗pypi
❌	avro-python3	-	-	-	-	-	-
❌	srsly	-	-	-	-	-	-
✅	cymem	-	🔗PR	-	-	googleapis/python-crc32c#15	🔗pypi
❌	murmurhash	-	-	-	-	-	-
✅	bitarray	-	-	-	-	-	🔗pypi
❌	cramjam	-	-	-	QC: WIP	-	-
❌	dbt-extractor	-	-	-	QC: WIP	-	-
✅	ml-dtypes	-	-	-	-	-	🔗pypi
❌	jpype1	-	-	-	QC: WIP	-	-
❌	asyncpg	-	-	-	-	-	-
🟡	marisa-trie	-	🔗PR	-	Waiting for Release	-	-
❌	gym	-	-	-	-	-	-
❌	ratelimit	-	-	-	-	-	-
❌	fire	-	-	-	-	-	-
❌	fastparquet	-	-	-	-	-	-
❌	kfp	-	-	-	-	-	-
🟡	pywavelets	-	PR	-	-	-	Waiting for release
❌	starkbank-ecdsa	-	-	-	-	-	-
❌	jellyfish	-	-	-	-	-	-
❌	msgspec	-	-	-	-	-	-
✅	pycares	-	🔗PR	-	-	-	🔗pypi
❌	litellm	-	-	-	-	-	-
✅	maxminddb	-	🔗PR	-	-	-	🔗pypi
❌	ciso8601	-	-	-	-	-	-
❌	protobuf3-to-dict	-	-	-	-	-	-
❌	python-nvd3	-	-	-	-	-	-
❌	hiredis	-	-	-	-	-	-
✅	logbook	-	🔗PR	-	-	-	🔗pypi
❌	typed-ast	-	-	-	is end of life since python 3.8	-	-
✅	wrapt	-	🔗PR	-	-	-	🔗pypi
✅	frozenlist	🔗Issue	🔗PR			googleapis/python-crc32c#32	🔗pypi
✅	yarl	🔗Issue	🔗PR			googleapis/python-crc32c#33	🔗pypi
🟡	sqlalchemy	🔗Issue	🔗PR		PR merged	googleapis/python-crc32c#34
❌	mypy	🔗Issue			Maintainers want to see more downloads on WoA	googleapis/python-crc32c#35

Template:

Done	Tool	Issue	PR	Depend	Notes	Assigned	ETA/Wheel link
❌/🟡/ ✅	TEMPLATE	🔗Issue	🔗PR	DEPENDS	NOTES	ASSIGNED	ETA

[lazka]

cffi: python-cffi/cffi#164

[khmyznikov]

@lazka do you know why it's still not merged?

[lazka]

@lazka do you know why it's still not merged?

I assume because cffi hasn't had an active maintainer in quite a while.

[Greenie0701]

Hi @khmyznikov , I am really interested to contribute in enabling python wheels for WoA. Is there anything left for me?

[khmyznikov]

@lowkeyrossi definitely. Just scan the first table or second and take anything where no PRs. Create the sub issue with package name, assign yourself to it and share the progress there.

[HinTak]

FWIW, skia-python had WoA support in m138. The issue was closed skia-python/skia-python#318 . It was dependent on numpy, which had 2.3 0 released with WoA support.

[khmyznikov]

@HinTak great! Do you work on something else from the lists?

[HinTak]

@HinTak great! Do you work on something else from the lists?

No, but you can see I contributed the numpy pull for WoA. (Because skia-python depends on numpy). That was my first ever contribution to numpy.

[Greenie0701]

Thanks, I am pretty good with nlp modules, so you can assign me tokenizer and tiktoken. I could see both depends on rust toolchain from CI.