enhance PythonPackage easyblock to deal with posix_local installation scheme used by Python in recent Debian/Ubuntu versions

[boegel]

fixes #2976

[boegel]

Test report by @boegel

Overview of tested easyconfigs (in order)

• SUCCESS EasyBuild-4.8.0.eb

Build succeeded for 1 out of 1 (1 easyconfigs in total)
node4012.donphan.os - Linux Ubuntu 22.04.1 LTS (Jammy Jellyfish), x86_64, Intel(R) Xeon(R) Gold 6240 CPU @ 2.60GHz (cascadelake), Python 3.10.6
See https://gist.github.com/boegel/0bbe4047ad6d144046c282740c93d802 for a full test report.

[boegel]

Test report by @boegel

Overview of tested easyconfigs (in order)

• SUCCESS EasyBuild-4.8.0.eb

Build succeeded for 1 out of 1 (1 easyconfigs in total)
vpnz200.ugent.be - Darwin UNKNOWN UNKNOWN, AArch64, Apple M1 (m1), Python 3.9.6
See https://gist.github.com/boegel/7dfc46cfb795d3e1d5ed413711b8f0ea for a full test report.

[boegel]

Test report by @boegel

Overview of tested easyconfigs (in order)

• SUCCESS EasyBuild-4.8.0.eb

Build succeeded for 1 out of 1 (1 easyconfigs in total)
node3106.skitty.os - Linux RHEL 8.6, x86_64, Intel(R) Xeon(R) Gold 6140 CPU @ 2.30GHz (skylake_avx512), Python 3.6.8
See https://gist.github.com/boegel/a668b898634f0bbf5da4e0a032d86721 for a full test report.

[boegel]

Test report by @boegel

Overview of tested easyconfigs (in order)

• SUCCESS Python-3.11.3-GCCcore-12.3.0.eb

Build succeeded for 1 out of 1 (1 easyconfigs in total)
node4012.donphan.os - Linux Ubuntu 22.04.1 LTS (Jammy Jellyfish), x86_64, Intel(R) Xeon(R) Gold 6240 CPU @ 2.60GHz (cascadelake), Python 3.10.6
See https://gist.github.com/boegel/a2fa138d863eb40989cb6e4cd4962cc5 for a full test report.

[jfgrimm]

lgtm

[jfgrimm]

Going in, thanks @boegel!

[akesandgren]

Test report by @akesandgren

Overview of tested easyconfigs (in order)

• FAIL (build issue) EasyBuild-4.8.0.eb (partial log available at https://gist.github.com/akesandgren/2110b2b90c8065789e64b71981b81e5f)

Build succeeded for 0 out of 1 (1 easyconfigs in total)
skalman.hpc2n.umu.se - Linux Ubuntu 22.04, x86_64, Intel(R) Core(TM) i7-8565U CPU @ 1.80GHz, Python 3.10.12
See https://gist.github.com/akesandgren/4d628d11ff3fd6a1df0875b9adf60f4a for a full test report.

eb --install-latest-eb-release --prefix /scratch/ebtest4 --include-easyblocks-from-pr 2977 -u