bpo-2506: Add mechanism to disable optimizations by pablogsal · Pull Request #22027 · python/cpython

Add -X noopt command line option to disable compiler optimizations.

distutils ignores noopt: always enable compiler optimizations.

* Add sys.flags.noopt flag.
* Add 'noopt' keyword-only parameter to
  builtin compile(), importlib.util.cache_from_source() and
  py_compile.compile().
* importlib: SourceLoader gets an additional keyword-only '_noopt'
  parameter. It is used by py_compile.compile().
* importlib uses ``.noopt.pyc`` suffix for .pyc files
  if sys.flags.noopt is true.
* Add PyConfig.optimize parameter.
* Update subprocess._optim_args_from_interpreter_flags().
* Add support.requires_compiler_optimizations()
* Update unit tests which rely on compiler optimizations for noopt:
  add @support.requires_compiler_optimizations.
* Rename c_optimize to c_optimization_level in compiler.c

Co-Authored-By: Yury Selivanov <yury@magic.io>
Co-Authored-By: Victor Stinner <vstinner@python.org>