Due to upstream changes in python path calculations, I'm simplifying the
python launcher to work more like a standard python distribution. This
is effectively changing the stdlib path from `internal/stdlib` to
`internal/python3.10` (or `3.11`, etc). This allows us to specify the
zip file as PYTHONHOME, set PYTHONPLATLIBDIR to `internal` and use the
default detection after that.
That does mean during upgrades that the stdlib pkg path will change, so
move the source vs prebuilt calculation from the Android.bp into Soong
to choose which stdlib module to pick up (with the corresponding
`pkg_path`)
Bug: 278602456
Test: treehugger with python3.10
Test: a python3.11 source + 3.10 prebuilt build
Test: a python3.11 source+prebuilt build
Change-Id: I8b02e7b22a1f1d1e02819ae1a31a99cdc985542c
This signifigantly improves the startup time of soong-built
python binaries. For example, running
`m apexer && time out/host/linux-x86/bin/apexer` gives
0.734s before this cl, and 0.094s after.
Fixes: 259718110
Test: Presubmits
Change-Id: Ib19e83e2c60c39a849525be117279c318de3afa7
This test adds a number of checks for the visible python state inside a
hermetic par file.
Test: build/soong/python/tests/runtests.sh
Change-Id: I7188d862a309a09623169e1f967bde86707d41af
