(feat): full v2 compat via python fallback #167

Job	Run time
build sdist	14s
build on linux (x86_64 - 2_28)	4m 35s
build on linux (aarch64 - 2_28)	4m 20s
build on macos (x86_64)	3m 1s
build on macos (aarch64)	3m 8s
build on windows (x86_64)	12m 1s
build on linux (armv7 - 2_28)	4m 28s
build on linux (ppc64le - 2_28)	4m 16s
build on linux (x86_64 - musllinux_1_2)	3m 58s
build on linux (aarch64 - musllinux_1_2)	4m 6s
build on linux (armv7 - musllinux_1_2)	3m 54s
build on windows (i686)	11m 58s
inspect	4s
version	0s
publish	0s
	1h 0m 3s

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