PyO3

PyO3 is used at run time in 865 crates (of which 252 optionally). It is a direct run-time dependency in 576 crates. It's used only as a dev dependency in 23 crates (of which 18 directly).

Number of dependers	PyO3 version	Downloads/month
53	0.21.2	116K
201	0.20.3	429K
93	0.19.2	141K
323	0.18.3	578K
31	0.17.3	39K
50	0.16.6	16K
41	0.15.2	53K
2	0.15.1	26K
26	0.14.5	10K
1	0.14.2	0
16	0.13.2	4.4K
9	0.12.4	4.6K
10	0.11.1	1.1K
5	0.10.1	500
7	0.9.2	260
13	0.8.5	400
1	0.7.0	0
2	0.6.0	130
4	0.5.4	0

Depender (with downloads and own rev deps)			PyO3 version
1.0M	645	eyre	optional	^0.20
424K	158	arrow	optional	^0.20
137K	78	numpy		^0.21.0
74K	17	pyo3-log		>=0.15, <0.21
212K	20	ruint	optional	^0.19
67K	25	pyo3-asyncio		^0.20
193K	29	datafusion-common	optional	^0.20.0
164K	20	accesskit	optional	^0.20
51K	20	pythonize		^0.21.0
70K	8	polars-lazy	optional	^0.21
69K	7	polars-plan	optional	^0.21
16K	4	pyo3-polars		^0.21.0
40K	7	pep440_rs	optional	^0.21.0
38K	5	pep508_rs	optional	^0.20.2
38K	35	tiktoken-rs	optional	^0.19.2
9.2K		pyembed		^0.17.3
9.2K	1	python-oxidized-importer		^0.17.3
25K	35	redb	optional	^0.20.0
20K		jiter	optional	^0.21.0
16K	6	raptorq	optional	^0.20
14K	2	dbn	optional	^0.20
4.1K	5	breezyshim		>=0.20
3.8K		pyo3-file		>=0.21, <0.22
3.5K	1	pyo3-filelike		>=0.19.0
3.2K	1	struqture-py		^0.20
3.0K	6	qoqo_calculator_pyo3		^0.20
9.0K	21	kdam	optional	^0.20
2.8K	7	qoqo		^0.20
8.2K	1	cloudproof_findex	optional	^0.20.3
7.9K	1	clarabel	optional	^0.20
2.3K	1	grammartec		^0.18
7.4K	10	debversion	optional	>=0.17
6.8K	40	needletail	optional	^0.18
6.7K	18	hifitime	optional	^0.20.0
5.8K	6	chia-bls	optional	^0.19.0
5.5K	5	chia-traits	optional	^0.19.0
5.5K		libcst	optional	^0.20
5.2K	9	lingua	optional	^0.20.0
1.5K		serde-pyobject		^0.21.0
1.4K	253	caffe2-imports		^0.18.1
1.3K	3	hwi		^0.15.1
4.2K	1	cloudproof_aesgcm	optional	^0.20.3
4.2K	1	cloudproof_ecies	optional	^0.20.3
4.2K	1	cloudproof_anonymization	optional	^0.20.3
4.2K	1	cloudproof_cover_crypt	optional	^0.20.3
4.2K	1	cloudproof_fpe	optional	^0.20.0
1.0K	1	pyo3-chrono		^0.17
3.4K	7	peroxide	optional	^0.21
900	2	rigetti-pyo3		^0.20
900		pyo3-pylogger		>0.17
800		bumble		^0.18.3
650		thermolib		^0.20.0
650		mrml-python		^0.20.0
2.5K	3	z-base-32	optional	^0.20.2
600	2	debian-analyzer		>=0.19
550	10	solders-traits		^0.20.2
2.2K		packet_rs	optional	^0.16.5
500		tiny-solver		^0.21.0
460	2	inline-python-macros		^0.19
450		pyxel-wrapper		^0.20
430		scandir_rs		^0.21
410		qoqo-qryd		^0.20
390	3	inline-python		^0.19
390		qoqo-quest		^0.20
390	17	solders-traits-core		^0.20.2
380		selmr		^0.21.1
1.6K	8	erg_common	optional	^0.20
1.6K	4	erg_parser	optional	^0.20
360		bean-rs		^0.21.0
350		egobox		^0.20.0
1.5K	5	erg_compiler	optional	^0.20
340		pyodide-webassembly-runtime-layer		^0.20
340	5	bitcoin_hwi		^0.19.1
320		similari		^0.18
320		quil-py		^0.20.3
310		qoqo-iqm		^0.20
300		deterministic-keygen		^0.19.2
290		symagen		^0.20.0
280		solders		^0.18.0
270		qoqo_for_braket_devices		^0.20
260		add-determinism		^0.20.0
260		naluacq		^0.18.1
1.3K	1	hydroflow	optional	^0.18
1.2K		anise	optional	^0.20.0
240	1	sophus_pyo3		^0.21.0
220		abcrypt-py		^0.20.3
220		pamly		^0.19.0
210	1	solders-primitives		^0.20.2
1.1K	7	teo-result	optional	^0.20.3
210	1	solders-commitment-config		^0.20.2
200		beancount-parser-lima-python		^0.21.0
200	2	solders-transaction-confirmation-status		^0.20.2
190		semsimian		^0.20.3
190		querent-synapse		^0.20.0
180	2	solders-transaction-error		^0.20.2
180		kgdata		^0.19.2
170	1	dora-operator-api-python		^0.20.0
160	10	solders-pubkey		^0.20.2
160		teapot_tools		^0.18.3
160		sovereign-rs		^0.19
160	1	solders-address-lookup-table-account		^0.20.2
160		codde_protocol		^0.21.1
160		didppy		^0.20
160	1	pyo3-tch		^0.18.3
160	1	solders-transaction		^0.20.2
160		hydro_cli		^0.18
150		pyluwen		^0.19.2
150		rs1090-python		^0.19.0
150	1	solders-transaction-return-data		^0.19.2
140		intellirust		^0.20.2
140		pyanndata		^0.20.2
140		stam-python		^0.20.3
140		pychan		^0.21.0-beta.0
900	3	portgraph	optional	^0.20
140		nafcodec-py		^0.21.1
130		solders-compute-budget		^0.20.2
130	1	solders-transaction-status-enums		^0.20.2
120	1	solders-account-decoder		^0.20.2
850		qsv	optional	^0.21
120	3	solders-signature		^0.20.2
120		ggetrs		^0.16.5
120	2	solders-message		^0.20.2
120	1	solders-keypair		^0.20.2
850		ast-grep-py	optional	^0.21.1
110		godata_lib		^0.19.2
110		tokengrams		^0.20.1
110		solders-epoch-info		^0.20.2
110	2	pyo3_bindgen_engine		^0.20
110	4	solders-instruction		^0.20.2
110		qmk-via-api		^0.21.0
110	2	pyo3_bindgen		^0.20
100		aderyn_py		^0.19.0
100		nalgebra-py		^0.16.6
800	1	grex	optional	^0.20.3
800		locustdb	optional	^0.21
		mutuple		^0.21.1
	4	solders-hash		^0.20.2
	1	solders-transaction-status-struct		^0.19.2
750	5	finch	optional	^0.18
		tch-ext		^0.18.3
		datafusion-python		^0.20
		angreal		^0.18
		solders-transaction-status		^0.19.2
		solders-system-program		^0.20.2
		merlon		^0.18.3
	1	pyo3_bindgen_macros		^0.20
	1	links_bindings_python		^0.20
	1	docker-pyo3		^0.18
	1	wild-doc-script-python		^0.20.0
700	8	libafl_bolts	optional	^0.18
		galaxy-rs		^0.19.1
		mbf_gtf		^0.6.0-alpha.4
		stable-inline-python		^0.20.0
700	1	grapple-frc-msgs	optional	^0.19.0
		hdpc-dl		^0.16.5
		pyo3-anyio		0.16.*
		denote		^0.16.5
		coqui-tts		^0.18.2
		disperse		^0.19
	1	nicompiler_backend		^0.19.2
		qoqo_qasm		^0.20
		got-ya-id		^0.9.2
		mdd-soundcloud		^0.12.1
		faster-fishers		^0.17.3
		libredr-client		^0.21
		bitcoinquery		^0.14.5
	2	border-py-gym-env		=0.14.5
	1	hypermangle-py		0.19.*
		lightmotif-py		^0.18.3
		dualnum		^0.14
650		flowlang	optional	^0.20.2
		cramjam		^0.14.1
	1	silver-platter		>=0.19
		HPGO		^0.8.4
		ggca		^0.15.1
		valley-free		^0.15.1
		wfst4str		^0.15.1
		aws-smithy-http-server-python		^0.18.2
		lbl-python		^0.20.3
		orangino		^0.10.1
		image_captioner		^0.15
		origen		^0.11.1
		vcf_batcher		^0.18.3
	2	aorist_ast		^0.14.1
		blackscholes_python		^0.17.3
		epic-wallet-rust-python		^0.17.3
		event-voxel-builder		^0.20
		nanoset-py		^0.8.0
		opti_solve		^0.19.2
		cpnets		^0.19.0
		inflatox		^0.19
		wasmtime-py		^0.8.0
		cringify		^0.19
		fency-pgn		^0.19.2
		candle-pyo3		^0.20.0
		li_stephens_py_hkhan		^0.15.1
		nalgebra-numpy		^0.11
		optimal-transport		^0.11.1
		dammcheck		^0.19
	1	gymnasium		^0.20
		ognibuild		^0.18
		osm_graph		^0.20.2
		origen_metal		^0.16.5
		pigs		^0.19.2
		xain-fl		^0.9.0-alpha.1
		btfm		^0.18
		cftime-rs		^0.19.0
		gymnasium-rs		^0.19.2
		swarm-host		^0.18.1
		jellyfish		^0.18.0
		dydx-v3-rust		^0.16.4
		ferrilab		^0.20.2
		tttr-toolbox		^0.19
		upstream-ontologist		^0.19
		breezy		>=0.17, <0.19
		hyperjson		^0.8.3
		mbar-rs		^0.12.3
	2	morx		^0.16
		parviocula		^0.17.2
	3	sapiens_tools		^0.19.2
		savant_rs		^0.18
		xandikos		^0.18
		buildlog-consultant		^0.19
		fossair		^0.20.2
		lasprs		^0.20
		muslib		^0.20.2
600		ruint2	optional	^0.18.3
		shadow-drive-py		^0.17.3
		cryo_python		^0.20.0
		gstools-core		^0.20
	1	rustpynet_macros		^0.15
		cordoba-py		=0.6.0-alpha.2
		geoint		^0.12.3
		optima		^0.16.2
	1	pyo3-twisted-web		>=0.17, <0.19
		soco		^0.15.1
		underthesea_core		^0.15.0
		blobtk		^0.18.1
		grapl-graph-descriptions-py		^0.8.4
		opt_solver		^0.19.2
		verilogae_util		^0.13
		barust		^0.19.0
		dagtoc		^0.19.2
		dslib		^0.16.5
		dydx-v3-blocking		^0.16.4
		gldf_rs_python		^0.19
		niexpctrl_backend		^0.19.2
		optrs		^0.16.5
	1	py-raphtory		^0.18.1
		pyportus		^0.17
	2	python-ast		^0.20
	1	yummy-delta		^0.16.5
		fastok		^0.19.2
		glcmrs		^0.20.0
		jupyterm		^0.12.3
		konnoohmachi		^0.15.1
		logreduce-tokenizer		^0.15.1
		nalu		^0.17.3
		py_geo_interface		^0.21
		rust_transformers		^0.8.3
		tboard-pyo3		^0.20.0
		google_speech		^0.13.2
		hatto		^0.16.5
		obrewin		^0.19.0
		ouch_bindings_python		^0.20
		py-bip39-bindings		^0.9.2
		yass-2		^0.19.1
		cpywm		^0.8.4
		rustrees		^0.18.1
		tracing-for-pyo3-logging		^0.20
		ultrametric_matrix_tools		^0.14.5
		uwb_serial		^0.16.5
		cavint		^0.17.2
		datapan		^0.8.4
		pipeless-ai		^0.20
		pyawabi		^0.11
		steganer		^0.7.0
		hydro_roll		^0.19.0
		hydro_template		^0.20.3
		kiss-icp-pyo3		^0.20
550	2	wavers	optional	^0.20.0
	1	choyen_5000		^0.17.1
		fast_motion_planning		^0.14.1
		native_blockifier		^0.17.3
		pyonear		^0.18.0
		pytrace		^0.10.1
		seripack		^0.17.1
	1	anima6502		^0.17.1
	1	gymnasium_sys		^0.20
		opo		^0.15.1
		perde-core		^0.12
		plrs		^0.13.2
		py03_helper_macros		^0.20.1
		pym		^0.8.5
	1	pyo3io-macros		^0.20
		riscv-process-rs		0.13.*
		sarek		^0.5
		sift		^0.8.4
		spaceindex-py		^0.9.0-alpha.1
		ff_k_center		^0.14.4
		ofo		^0.15.1
		oko		^0.15.1
		oqo		^0.15.1
		ouo		^0.15.1
		ovo		^0.15.1
		oxo		^0.15.1
		py-ed25519-bindings		^0.9.2
		pyo3-matrix-synapse-module		>=0.17, <0.19
		pyrus-nn		^0.5.2
		python-core		^0.15.1
		pywavers		^0.18.1
	1	rithm		^0.20.0
	2	stable-swap-sim		^0.16.4
		exon-py		^0.20
		oeo		^0.15.1
		pyo3-opentelemetry		^0.20.0
		qoqo_qiskit_devices		^0.20
		bitcoin-query		^0.14.5
		oao		^0.15.1
		ogo		^0.15.1
		omo		^0.15.1
		pyaugurs		^0.19.1
		pydestiny		^0.11.1
		readfish-tools		^0.19.1
		rene		^0.19.0
		retworkx		^0.12.3
		spellcheck-rs		^0.6.0-alpha.4
		akinator-py		^0.16
		qoqo-aqt		^0.20
		py-sr25519-bindings		^0.9.2
		pycanrs		^0.18.1
		randall		^0.14
		rems		^0.19
		rpmoci		^0.19.1
		rust_demangle		^0.13.0
		mos		^0.16.1
		pr		^0.15.1
		py-pkstl		^0.8.4
		pyo3-tracing-subscriber		^0.20.0
		pyrs		^0.17
		pysprint-cli		^0.13
		raphtory-pymodule		^0.18.1
		py-fossil-delta		^0.8.4
		pyella		^0.19.0
		pyo3-mp		^0.12
		pyplanetarium		^0.18
		rsnltk		^0.15.1
		snito_vector		^0.15.1
		spvn_lifespan		^0.18.3
		woo		^0.15.1
		RustPyNet		^0.15
		pyrpds		^0.9.2
		sapiens_exp		^0.19.2
		mh		^0.15.1
		mw		^0.15.1
		ng		^0.15.1
		nm		^0.15.1
		pime		^0.14.1
		pymorx		^0.16
		querent-rs		^0.20.0
		quicksocket		^0.14.1
		rebop		^0.19.2
		roaring-landmask		^0.17
		routee-compass-py		^0.20.0
500		weggli	optional	^0.13.0
		dcss-api		^0.20
500	1	redb-32bit	optional	^0.20.0
		puff-rs		^0.17.3
		pyadvreader		^0.20
		pymedusa-zip		^0.19
		pyo3-async		>=0.18, <0.21
		clvm_rs		=0.14.2
		py_mcai_worker_sdk		^0.14
		pyo3_decimal		^0.16.4
		quicktok		^0.20.3
		rillrate-py		^0.14.5
		rustpy		^0.18.1
		sapiens_bot		^0.19.2
		sapiens_cli		^0.19.2
		suan		^0.16.0
		robotics		^0.18
		anchorpy_core		^0.17.2
		audiobook_tts		^0.18.1
500		oasysdb	optional	^0.20.2
490		altrios-core	optional	^0.19
480	6	clvm-traits	optional	>=0.19.0
480		flute	optional	^0.20
450	1	fiddler	optional	^0.21.1
430	1	epdx	optional	^0.20.2
430		autd3-link-visualizer	optional	^0.21.0
420		symbolica	optional	^0.20
410		if97	optional	^0.19.2
400		tket-json-rs	optional	^0.21.1
400		tapo	optional	^0.20
390	1	simuldb	optional	^0.20.0
380	1	rust-strings	optional	^0.20.2
380		satkit	optional	^0.20.0
370	9	num-dual	optional	^0.21
340		lcax	optional	^0.20.2
340		righor	optional	^0.20.0
290		dwat	optional	^0.20.2
270	6	vegafusion-common	optional	^0.20.0
270	2	chia-consensus	optional	>=0.19.0
260	1	everscale-raptorq	optional	^0.16
260		subversion	optional	>=0.19
250		bed-reader	optional	^0.20.0
260		datafusion-server	optional	^0.20.3
250		similari-trackers-rs	optional	^0.20
250		nb2pb	optional	^0.18.2
240		leetcode-cli	optional	^0.16.5
240	2	vegafusion-dataframe	optional	^0.20.0
230		lebai_sdk	optional	^0.20
230		mrflagly	optional	^0.18.0
230		vrp-cli	optional	^0.20.0
220	5	chia-protocol	optional	^0.19.0
220	2	vegafusion-core	optional	^0.20.0
210	1	dora-runtime	optional	^0.20.0
210		mapfile_parser	optional	^0.20.0
200	2	vegafusion-sql	optional	^0.20.0
200	3	candle-examples	optional	^0.20.0
190		dlpark	optional	^0.21
190		ka3005p	optional	^0.21.2
170	7	quantity	optional	^0.21
170	8	rustsat	optional	^0.20.0
160		aspeak	optional	^0.19.0
160		clvm_tools_rs	optional	^0.20.2
160	1	cyfs-raptorq	optional	^0.12
150		scalpel	optional	^0.20
150	2	thot-core	optional	^0.17.1
150		yabai	optional	^0.21.0
130		cecile-supercool-tracker	optional	^0.20
120		pm-remez	optional	^0.21
120	2	umbral-pre	optional	^0.18
120	1	vtracer	optional	^0.19.0
120	5	chik-bls	optional	^0.19.0
120	5	chik-traits	optional	^0.19.0
120		klvm_tools_rs	optional	^0.20.2
110	3	mwalib	optional	^0.20.0
100		cover_crypt	optional	^0.16.3
100	3	rustyknife	optional	^0.13
100		entity-gym-rs	optional	^0.15
	1	ferveo-pre-release	optional	^0.18.2
100	1	sloppy-core	optional	^0.18.1
	1	ssd-data	optional	^0.20.0
		gsim	optional	^0.19.2
	5	klvm-traits	optional	>=0.19.0
		oberon	optional	^0.19
		devolutions-crypto	optional	^0.19
	1	lophat	optional	^0.18.1
		lavalink-rs	optional	^0.20
		implies	optional	^0.19.2
	5	aorist_primitives	optional	^0.14.1
		cpy-binder	optional	^0.18
	4	ella-common	optional	^0.19.0
	1	feos	optional	^0.20
	1	libafl_qemu	optional	^0.18
	2	xxh3	optional	^0.16
	6	feos-core	optional	^0.20
		rpmrepo_metadata	optional	^0.20.0
		libafl_sugar	optional	^0.18
	3	mkutil	optional	^0.20.0
		stitch_core	optional	^0.16.1
		fractus	optional	^0.20.3
		hangman_solver	optional	^0.20.0
	5	chiral-common	optional	^0.18
	1	cmod-core	optional	^0.20
		coppers	optional	^0.16
	1	cordoba	optional	^0.11
	4	feos-dft	optional	^0.20
	1	constriction	optional	^0.20
	1	fusion-blossom	optional	^0.18.3
		k0mmand3r	optional	^0.14
	1	mwa_hyperbeam	optional	^0.19.1
		nexsys-core	optional	^0.17.3
		orkhon	optional	^0.12
		taxonomy	optional	^0.18
		fastsim-core	optional	^0.19
		fbleau	optional	^0.13.2
	2	install-wheel-rs	optional	^0.19.2
		ipl3checksum	optional	^0.20.2
		playbook	optional	^0.5
		reasonable	optional	^0.17
		abe_gpsw	optional	^0.16
		ahrs-fusion	optional	^0.16.3
		alator	optional	^0.20.0
	1	algebraics	optional	^0.16
		another-tiktoken-rs	optional	^0.19.2
		aorist	optional	^0.14.1
	2	aorist_attributes	optional	^0.14.1
	1	aorist_constraint	optional	^0.14.1
	2	aorist_core	optional	^0.14.1
		ast-grep-pyo3	optional	^0.20.0
		autd3-link-monitor	optional	^0.19.0
	2	avenger	optional	^0.20.2
	1	avenger-vega	optional	^0.20.2
		avenger-wgpu	optional	^0.20.2
		babycat	optional	^0.18.1
		baskerville	optional	^0.19.2
		binlog	optional	^0.16.1
		boytacean	optional	^0.20
		bufkit-data	optional	^0.16.4
		bytebraise	optional	^0.18.2
	1	cantact-driver	optional	^0.10.1
	1	cellular_raza-building-blocks	optional	^0.20
		chidori	optional	^0.18.3
	1	chik-consensus	optional	>=0.19.0
	4	chik-protocol	optional	^0.19.0
		chinilla	optional	=0.15.1
	1	chinilla-protocol	optional	=0.15.1
		chinillaclvm_tools_rs	optional	^0.14.2
	1	ciphercore-base	optional	^0.17.1
		cocotools	optional	^0.18
		conflag	optional	^0.18.2
		cosmian_abe_gpsw	optional	^0.16
		cosmology	optional	^0.16.5
	1	crunch64	optional	^0.20.0
	1	dbz-lib	optional	^0.17.1
	1	dess-core	optional	^0.18.1
		dess-examples	optional	^0.18.1
		dvc	optional	^0.16.2
		ent	optional	^0.11
		expr_rs	optional	^0.16.4
		feos-gc-pcsaft	optional	^0.16
		feos-pcsaft	optional	^0.16
		feos-pets	optional	^0.16
		ferric_crypto_lib	optional	^0.20.0
		finch_lib	optional	^0.13
		findpython	optional	^0.19.0
		gbfs_types	optional	^0.20
		gerb	optional	^0.18
	1	glslt	optional	^0.20
		graffle	optional	^0.19.0
		hypermangle-core	optional	0.19.*
		image-go-nord	optional	^0.14.5
	1	json-trait-rs	optional	^0
	7	lakers-shared	optional	^0.20.2
	1	lenna_core	optional	^0.14
	2	lentrait	optional	^0.13.2
	1	libafl_qemu_sys	optional	^0.18
		lintian-brush	optional	>=0.19
		lorikeet-genome	optional	^0.17
		makedeb-srcinfo	optional	^0.16.5
	1	meanshift-rs	optional	^0.17.2
		mwps	optional	^0.17.2
		nexsys	optional	^0.17.3
		pconvert-rust	optional	^0.16
		phylodm	optional	^0.19.0
	1	phylotree	optional	^0.19.0
		polygons	optional	^0.20
		polymers	optional	^0.19
		power-instruction-analyzer	optional	^0.11
		qdk_sim_experimental	optional	^0.13.2
		qdk_sim_rs	optional	^0.13.2
	1	qecp	optional	^0.19.2
		qrotate	optional	^0.18.1
	1	ragged-buffer	optional	^0.16.5
	3	raphtory	optional	^0.20.0
		rgrow	optional	^0.18
		rpsl-parser	optional	^0.20.0
		rscel	optional	^0.20.0
	1	rust_sbml	optional	^0.14.1
		rustqubo	optional	^0.17
		s2gpp	optional	^0.16
		seuif97	optional	^0.19.2
	3	simple-soft-float	optional	^0.8.4
		ssd	optional	^0.20.0
	1	suan-core	optional	^0.16.0
		subset_sum	optional	^0.20.0
		trait_len	optional	^0.13.2
		twibint	optional	^0.19.0
		vtext	optional	^0.10.1
		vtracer_buffer	optional	^0.19.0
		xdot	optional	^0.18.2
	1	ymlctx	optional	^0.5.0
404K	53	prometheus-client	dev	^0.20
5.8K	4	dict_derive	dev	^0.20
2.1K		open-metrics-client	dev	^0.15
230	1	rustpython	dev	^0.20.2
180	1	find_peaks	dev	^0.13
120		typed_graph	dev	^0.20.0
	2	genanki-rs	dev	^0.13.2
		morph-rs	dev	^0.20
		librna-sys	dev	~0.16
		iltcme	dev	^0.20.2
		rust-optimal-transport	dev	^0.15.1
		sciport-rs	dev	^0.19.1
	1	pyo3-async-macros	dev	>=0.18, <0.21
	1	gosh-fire	dev	^0.10.1
		border	dev	=0.14.5
		komunikilo	dev	^0.20
	1	pyo3-helper-macros	dev	^0.20.1
	1	wordle_rs	dev	^0.15.1
		twirs	dev	^0.19.2
		pyo3-arraylike	dev	^0.21