On 01/12/2020, at 02:24, Mikhail Golubev via Distutils-SIG <distutils-sig@python.org> wrote:
The second question is about the behavior of this option. It appears that we initially started using it because in the past packages were not built in a temporary directory by default. Could you please point me to the exact version of pip where it changed? -- I couldn't find it in a changelog. It would help us decide whether we need to keep some compatibility layer for interpreters with an old version of pip installed.It seems like this has been the case since 2014 (around pip 6.x), from reading https://github.com/pypa/pip/issues/906--
Tzu-ping Chung (@uranusjr)