[compiler] end of life of python3.10 for focal

[seanshpark]

ppa:deadsnakes has dropped python3.10 (and all other versions too) for focal and removed those packages,
as focal has reached end-of-life.

we'll get errors like this when we try to install;

E: Package 'python3.10' has no installation candidate
E: Package 'python3.10-venv' has no installation candidate
E: Unable to locate package python3.10-dev
E: Couldn't find any package by glob 'python3.10-dev'

---

We have alternate method to install python3.10 on focal: https://github.com/astral-sh/uv

---

TODO

• disable focal test for push commit, for the moment
• update docs/howto/how-to-build-compiler.md
• after python3.10 is available again,
  • update docs/howto/how-to-build-compiler.md again
  • update circle-mlir/infra/docker/focal/Dockerfile

[seanshpark]

CC @shs-park

[seanshpark]

I cannot think of any solution to solve this problem as of now.
@shs-park , any comments ?

[shs-park]

Let me check how to install Python 3.10 on the Focal distribution.
If there’s no other solution, it might be time to drop support for Focal. 😭

[seanshpark]

cases that I can think of

• provide python3.10 in launchpad.net circletools until we drop focal
  • I found https://github.com/deadsnakes/py3.10/tree/6efa604802bc00c625fd82ed3875f189e431cbc8 just before removal of focal, but didn't check if this is the source
• drop focal
  • provide python3.10 for inhouse only somehow, for our customer for the meantime
• downgrade to python3.8 for focal
  • all depdendent python packages should also be downgraded
  • too much of a burden for maintenance
• ...

anyway, we have to disable compiler/circle-mlir CI for focal

[shs-park]

• provide python3.10 in launchpad.net circletools until we drop focal

I'll try this one on the ppa:circletools/nightly first.

[seanshpark]

Internal CI gave dalgona failure while testing. Maybe issue with python3.10.

fm-equalize: CalledProcessError: Command '['/__w/ONE/ONE/build/compiler/dalgona/dalgona', '--input_model', '/__w/ONE/ONE/build/compiler/fm-equalize-value-py-test/FullyConnected_010.opt.circle', '--analysis', '/__w/ONE/ONE/build/compiler/fm-equalize/fmelib/DumpFMEParams.py', '--analysis_args', '/tmp/tmpml4ft8da/FullyConnected_010.after.fme_patterns.json']' died with <Signals.SIGABRT: 6>.

/__w/ONE/ONE/build/compiler/dalgona/dalgona --input_model /__w/ONE/ONE/build/compiler/fm-equalize-value-py-test/FullyConnected_010.opt.circle --analysis /__w/ONE/ONE/build/compiler/fm-equalize/fmelib/DumpFMEParams.py --analysis_args /tmp/tmpml4ft8da/FullyConnected_010.after.fme_patterns.json
b'--input_data was not specified. Run with a random input.\n'
b"terminate called after throwing an instance of 'pybind11::error_already_set'\n what(): ModuleNotFoundError: No module named 'numpy'\n\nAt:\n /__w/ONE/ONE/build/compiler/fm-equalize/fmelib/DumpFMEParams.py(21): \n (241): _call_with_frames_removed\n (883): exec_module\n (703): _load_unlocked\n (1006): _find_and_load_unlocked\n (1027): _find_and_load\n (5): \n\n"
Error raised while running the below command
/__w/ONE/ONE/build/compiler/dalgona/dalgona --input_model /__w/ONE/ONE/build/compiler/fm-equalize-value-py-test/Net_DConv_Conv_000.opt.circle --analysis /__w/ONE/ONE/build/compiler/fm-equalize/fmelib/DumpFMEParams.py --analysis_args /tmp/tmptzjn6uba/Net_DConv_Conv_000.after.fme_patterns.json

ModuleNotFoundError: No module named 'numpy'

--> internal CI is OK with clearing the cache.

[seanshpark]

internal CI weekly build failed with

/bin/sh: 1: ../../overlay/venv/bin/python3.10: not found
make[2]: *** [compiler/common-artifacts/CMakeFiles/common_artifacts_python_deps.dir/build.make:72: compiler/common-artifacts/VIRTUALENV_OVERLAY_installed] Error 127

--> local test is ok... need to find the reason.

--> build result with draft PR with only adding V=1 option to cmake and result is success.
there was also third run by @hseok-oh and is OK...