I think the GP is asking why Chinese engineers would have their own software for mirroring, not why they'd have their own mirrors. (I believe most Chinese mirr

I think the GP is asking why Chinese engineers would have their own software for mirroring, not why they'd have their own mirrors. (I believe most Chinese mirrors use bandersnatch[1], like most non-Chinese mirrors.) [1]: https://github.com/pypa/bandersnatch https://github.com/pypa/bandersnatch