(feat): full v2 compat via python fallback #164

Job	Run time
build sdist	16s
build on linux (x86_64 - 2_28)	4m 25s
build on linux (aarch64 - 2_28)	4m 15s
build on macos (x86_64)	2m 59s
build on macos (aarch64)	3m 10s
build on windows (x86_64)	12m 18s
build on linux (armv7 - 2_28)	4m 28s
build on linux (ppc64le - 2_28)	4m 19s
build on linux (x86_64 - musllinux_1_2)	4m 15s
build on linux (aarch64 - musllinux_1_2)	3m 56s
build on linux (armv7 - musllinux_1_2)	4m 8s
build on windows (i686)	12m 30s
inspect	2s
version	0s
publish	0s
	1h 1m 1s

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