[Tracker] WoA🐍Libs🦾

[khmyznikov]

WoA🐍Libs🦾

Willing to participate, but don't have the hardware? Reach the Arm Developer Lab!

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 Jun 6, 2026, these lists are only the 5% of top 1000, the rest 95% 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
❌	pyarrow	🔗Issue	🔗PR	-	QC: PR work is in progress	#25	-
❌	deltalake	-	-	pyarrow	Coupled with pyarrow	-	-
❌	jaxlib	🔗Issue	-	SciPy	Google's library	-	-
⬛	grpcio	🔗Issue	🔗PR	-	RP rejected. Infra blocked.	#6	🔗temp
❌	grpcio-tools	-	-	grpcio	Coupled with grpcio	-	-
❌	ray	🔗Issue	-	-	QC: Lack of grpcio holds this enablement, in discussion with maintainers	-	-
🟡	numba	🔗Issue	-	llvmlite, conda	Waiting for release	#37	-
🟡	llvmlite	🔗Issue	Related PR	-	Waiting for release	#24	-
❌	shap	-	-	numba	QC: Waiting for numba enablement	#38	-
❌	librosa	-	-	Numba	Coupled with Numba	-	-
❌	triton-windows	🔗Issue	-	-	Support only x86 and Nvidia GPU, QC started investigation	#40	-
⁉️	confluent-kafka	🔗Issue	🔗PR	-	QC: no response from maintainers	#42	-
❌	opencv-python	🔗Issue	🔗PR	-	-	#36	-
❌	onnxruntime	🔗Issue	-	-	Alternative package is onnxruntime-qnn There's confusion between the packages	-	-
❌	apache-beam	🔗Issue	-	grpcio	QC: started investigation	#39	-
⁉️	sglang	-	🔗PR	torch, torchvision, torchaudio, PyArrow, grpcio	linux only, a lot of unresolved deps	-	-
❌	psycopg-binary	🔗Issue	-	-	Blocked by libpq, discussion	-	-
⁉️	pymupdf	🔗Issue	🔗PR	-	QC: no response from maintainers	-	-
❌	pymssql	-	-	-	mssql don't support win-arm	-	-
❌	oracledb	-	-	cryptography	Oracle DB don't support win-arm64. Coupled with cryptography	-	-
❌	petf	-	-	-	-	-	-
⬛	tree-sitter-languages	-	-	-	Not maintained, arm64 successor is tree-sitter-language-pack	-	-
❌	cuda-bindings	-	-	-	-	-	-
❌	temporalio	-	-	-	-	-	-
❌	tensorflow-io-gcs-filesystem	-	-	-	Google's library	-	-
❌	tensorflow	🔗Issue	-	-	Google's library	-	-
❌	tensorflow-text	-	-	-	Google's library	-	-
🟡	bitsandbytes	-	🔗PR	-	-	-	-
🟡	cryptography	🔗Issue	🔗PR	-	Support dropped due GH image issues	-	🔗pypi
🟡	snowflake-connector-python	🔗Issue	🔗PR	cryptography	Testing is required to accept	#27	No ETA
🟡	shapely	🔗Issue	🔗PR	-	-	#13	~Q2 26
🟡	h5py	🔗Issue	🔗PR	-	Support disabled due CI failure	#29	🔗pypi
🟡	torchvision	-	-	PR merged	Nightly wheels available	-	-
🟡	statsmodels	🔗Issue	-	NumPy issues holds the enablement	-	-
🟡	blis	🔗Issue	🔗PR	-	Release waits for free-threading	#19	Q1 2026
🟡	pynacl	🔗Issue	🔗PR	-	Support dropped due GH image issues	-	🔗pypi
✅	thinc	🔗Issue	🔗PR	-	Only 8.x available on pypi	#28	🔗pypi
✅	scipy	🔗Issue	🔗PR	numpy	PR merged	#8	🔗pypi
✅	lxml	-	🔗PR	-	-	-	🔗pypi
✅	scikit-learn	🔗Issue	🔗PR	scipy	PR merged	#10	🔗pypi
✅	sentencepiece	🔗Issue	🔗PR	-	-	-	🔗pypi
✅	spacy	🔗Issue	-	blis	-		🔗pypi
✅	scikit-image	🔗Issue	🔗PR	-	-	#17	🔗pypi
✅	ddtrace	🔗Issue	🔗PR	libddwaf	-	#30	🔗pypi
✅	duckdb	🔗Issue	-	-	-	-	🔗pypi
✅	pyproj	🔗Issue	🔗PR	-	-	#14	🔗pypi
✅	google-re2	🔗Issue	🔗PR	-	-	#23	🔗pypi
✅	h3	🔗Issue	🔗PR	-	-	#20	🔗pypi
🟡	faiss-cpu	🔗Issue	-	-	latest version lacking the support	#16	🔗pypi
✅	onnx	-	-	-	-	-	🔗pypi
✅	xgboost-cpu	🔗Issue	🔗PR	-	-	#22	🔗pypi
⬛	uvloop	🔗Issue	🔗PR	-	Do not support Windows at all. Alternative: winloop	-	-
⬛	torchaudio	-	🔗PR	-	Work stopped until the end of Y26 due refactoring effort from maintainers	-	-
⬛	mysqlclient	-	-	-	mysql don't support win-arm. Linaro tried initial support, patch was refused. MariaDB is much better candidate (this comment related to server, not client)	-	-
⬛	triton	-	-	-	Do not support Windows at all. Alternative: triton-windows	-	-

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
❌	google-crc32c	🔗Issue	🔗PR	-	QC: Issues has been transfered to new repository	-	-
❌	setproctitle	-	🔗PR	-	QC: Created PR for publishing win-arm64 wheels	-	-
❌	tiktoken	-	🔗PR	-	QC: Created PR for publishing win-arm64 wheels	#12	-
❌	httptools	-	🔗PR	-	QC: Created PR for publishing win-arm64 wheels	-	-
❌	dbt-extractor	-	🔗PR	-	QC: Created PR for publishing win-arm64 wheels	-	-
❌	jpype1	-	-	-	Currently Azure pipelines are not provided for Win-ARM64	-	-
❌	asyncpg	-	-	-	-	-	-
❌	kfp	-	-	-	Blocked by Cryptography wheels	-	-
❌	jellyfish	-	🔗PR	-	-	-	-
❌	litellm	-	-	-	Blocked by fastuuid, aiohttps & tokenizers	-	-
❌	fastuuid	🔗Issue	🔗PR	-	-	-	-
❌	pyiceberg	-	-	pyarrow deps	-	-	-
🟡	aiohttp	-	🔗PR	-	Waiting for release	-	-
🟡	safetensors	🔗Issue	🔗PR	-	PR merged	-	Waiting for release
🟡	brotli	🔗Issue	🔗PR	-	-	-	-
🟡	ijson	-	🔗PR	-	QC: Upstreamed changes for publishing win-arm64 wheels	-	Waiting for release
🟡	cramjam	-	🔗PR	-	In RC	-	🔗pypi
🟡	pywavelets	-	🔗PR	-	-	-	Waiting for release
🟡	ciso8601	-	🔗PR	-	QC: Created PR for publishing win-arm64 wheels	-	Waiting for release
🟡	sqlalchemy	🔗Issue	🔗PR		PR merged	#34
🟡	numexpr	🔗Issue	🔗PR		PR merged	-	Waiting for release
✅	zopfli	-	-	-	-	-	🔗pypi
✅	clickhouse-connect	🔗Issue	-	-	-	-	🔗pypi
✅	hiredis	-	🔗PR	-	QC: Created PR for publishing win-arm64 wheels	-	🔗pypi
✅	gevent	-	🔗PR	-	QC: Created PR for publishing win-arm64 wheels	-	🔗pypi
✅	soundfile	🔗Issue	🔗PR	Depends on libsndfile	QC: Waiting for libsndfile binaries	-	🔗pypi
✅	mmh3	-	🔗PR	-	looks done	-	🔗pypi
✅	zope-interface	🔗Issue	-	-	QC: Created PR for publishing win-arm64 wheels	-	🔗pypi
✅	pandas	🔗Issue	🔗PR	numpy	-	-	🔗pypi
✅	numpy	🔗Issue	🔗PR	-	-	-	🔗pypi
✅	pyyaml	🔗Issue	🔗PR	-	-	#31	🔗pypi
✅	cffi	🔗PR	-	-	-	-	🔗pypi
✅	nh3	-	🔗PR	-	required by twine, which is useful for CI	-	🔗pypi
✅	markupsafe	-	🔗PR	-	-	-	🔗pypi
✅	propcache	-	🔗PR	-	-	-	🔗pypi
✅	multidict	-	🔗PR	-	PR merged	-	🔗pypi
✅	coverage	-	🔗PR	-	-	-	🔗pypi
✅	psutil	🔗Issue	🔗PR	-	PR merged	-	🔗pypi
✅	greenlet	🔗Issue	-	-	-	-	🔗pypi
✅	rpds-py	🔗Issue	🔗PR	-	-	-	🔗pypi
✅	msgpack	-	🔗PR	-	PR merged	-	🔗pypi
✅	regex	-	🔗PR	-	-	-	🔗pypi
✅	bcrypt	-	🔗PR	-	-	#18	🔗pypi
✅	matplotlib	🔗Issue	🔗PR	-	-	-	🔗pypi
✅	contourpy	-	-	-	-	-	🔗pypi
✅	winloop	🔗Issue	🔗PR	-	-	-	🔗pypi
✅	zstandard	-	-	-	-	-	🔗pypi
✅	tornado	🔗Issue	🔗PR	-	-	-	🔗pypi
✅	orjson	-	-	-	-	-	🔗pypi
✅	tokenizers	-	🔗PR	-	PR merged	#11	🔗pypi
✅	pycryptodome	-	-	-	-	-	🔗pypi
✅	pymongo	🔗Issue	🔗PR	-	-	-	🔗pypi
✅	pycryptodomex	-	-	-	-	-	🔗pypi
✅	jiter	-	-	-	-	-	🔗pypi
✅	thriftpy2	-	-	-	-	-	🔗pypi
✅	argon2-cffi-bindings	🔗Issue	🔗PR	-	-	-	🔗pypi
✅	pyodbc	-	🔗PR	-	-	-	🔗pypi
✅	libcst	-	-	-	-	-	🔗pypi
✅	ujson	-	-	-	-	-	🔗pypi
✅	preshed	-	-	-	-	-	🔗pypi
✅	cymem	-	🔗PR	-	-	#15	🔗pypi
✅	bitarray	-	-	-	-	-	🔗pypi
✅	ml-dtypes	-	-	-	-	-	🔗pypi
✅	marisa-trie	-	🔗PR	-	-	-	🔗pypi
✅	pycares	-	🔗PR	-	-	-	🔗pypi
✅	maxminddb	-	🔗PR	-	-	-	🔗pypi
✅	logbook	-	🔗PR	-	-	-	🔗pypi
✅	wrapt	-	🔗PR	-	-	-	🔗pypi
✅	frozenlist	🔗Issue	🔗PR			#32	🔗pypi
✅	yarl	🔗Issue	🔗PR			#33	🔗pypi
✅	avro-python3	-	-	-	-	-	🔗pypi
✅	fastavro	-	🔗PR	-	QC: Upstreamed changes for publishing win-arm64 wheels	-	🔗pypi
✅	srsly	-	-	-	-	-	🔗pypi
✅	msgspec	-	-	-	-	-	🔗PR
✅	mypy	🔗Issue	-	-	-	#35	🔗pypi
⬛	ruamel-yaml-clib	-	-	-	development has been stopped, instead use ruamel.yaml.clibz	-	-
⬛	typed-ast	-	-	-	deprecated package, use native ast	-	-
⬛	fastparquet	-	-	-	Require Panda 2.x, but Win-ARM64 supports from 3.x. Project retired.	-	-
⬛	gym	-	-	-	deprecated package, use gymnasium	-	-

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.