enable building of Python bindings for tbb 2020.3

[zarybnicky]

(created using eb --new-pr)

requires easybuilders/easybuild-easyblocks#2626

[boegel]

@boegelbot please test @ generoso
EB_ARGS="--include-easyblocks-from-pr 2626"

[boegel]

Test report by @boegel
Using easyblocks from PR(s) easybuilders/easybuild-easyblocks#2626
SUCCESS
Build succeeded for 1 out of 1 (1 easyconfigs in total)
node2620.swalot.os - Linux centos linux 7.9.2009, x86_64, Intel(R) Xeon(R) CPU E5-2660 v3 @ 2.60GHz (haswell), Python 3.6.8
See https://gist.github.com/9ba46953f2301852dad041b5775360de for a full test report.

[boegel]

Test report by @boegel
Using easyblocks from PR(s) easybuilders/easybuild-easyblocks#2626
SUCCESS
Build succeeded for 1 out of 1 (1 easyconfigs in total)
node3501.doduo.os - Linux RHEL 8.2, x86_64, AMD EPYC 7552 48-Core Processor (zen2), Python 3.6.8
See https://gist.github.com/6e4d2ef621567db958f0094dcaaab7ca for a full test report.

[boegelbot]

@boegel: Request for testing this PR well received on login1

PR test command 'EB_PR=14434 EB_ARGS="--include-easyblocks-from-pr 2626" /opt/software/slurm/bin/sbatch --job-name test_PR_14434 --ntasks=4 ~/boegelbot/eb_from_pr_upload_generoso.sh' executed!

• exit code: 0
• output:

Submitted batch job 7349

Test results coming soon (I hope)...

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[boegelbot]

Test report by @boegelbot
Using easyblocks from PR(s) easybuilders/easybuild-easyblocks#2626
SUCCESS
Build succeeded for 1 out of 1 (1 easyconfigs in total)
cns2 - Linux rocky linux 8.4, x86_64, Intel(R) Xeon(R) CPU E5-2667 v3 @ 3.20GHz (haswell), Python 3.6.8
See https://gist.github.com/f347c4a8530c831c054ac429d12d2669 for a full test report.

[boegelbot]

@zarybnicky: Tests failed in GitHub Actions, see https://github.com/easybuilders/easybuild-easyconfigs/actions/runs/1505088305
Output from first failing test suite run:

Merge base for develop and HEAD: 7d013725c19ad640fff5f9b921f37253ffca5131
======================================================================
Merge base for develop and HEAD: 7d013725c19ad640fff5f9b921f37253ffca5131
FAIL: test_conflicts (test.easyconfigs.easyconfigs.EasyConfigTest)

Check whether any conflicts occur in software dependency graphs.
----------------------------------------------------------------------
Traceback (most recent call last):
  File "test/easyconfigs/easyconfigs.py", line 297, in test_conflicts
    "No conflicts detected")
AssertionError: No conflicts detected

----------------------------------------------------------------------
Ran 13680 tests in 518.970s

FAILED (failures=1)
List of changed easyconfig files in this PR:
	tbb-2020.3-GCCcore-10.2.0.eb
ERROR: Not all tests were successful

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Please talk to my owner @boegel if you notice you me acting stupid),
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[boegel]

@zarybnicky The easyconfigs test suite is failing, because adding Python 3.8.6 as a dependency causes trouble in easyconfigs that (indirectly) depend on tbb but also depend on Python 2.7.18...

To avoid this, we would have to add a versionsuffix to tbb, which also requires renaming the easyconfig file.

Instead, we could simply add an tbb-2020.3-GCCcore-10.2.0-Python-3.8.6.eb easyconfig, which would avoid that issue.

We'll still be in a bit of a pickle with epiScanpy that depends on the tbb Python bindings though...

Another option could be to install the tbb Python bindings as a separate module, and naming that tbb-python or something...
Would that be feasible?

[zarybnicky]

I'll open another PR with TBB 2020.3 for foss/2021a, with TBB >2020.x left as another task for 2021b

[zarybnicky]

Continued in #14447