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GH-127178: improve compatibility in _sysconfig_vars_(...).json #128558

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@FFY00 FFY00 commented Jan 6, 2025

This patch improves environment and platform compatibility:

  • Data now matches sysconfig.get_config_vars after install
  • userbase now correctly reflects the target platform when cross-compiling
  • test_sysconfigdata_json now takes into account the following situations:
    • Running with a non-default sys.executable path
    • Running under virtual environments
    • Running under relocatable installs

To simplify the detection of relocatable installs, which needs to look at _sysconfigdata_(...), this module is now saved in sys.modules. As part of this change, the code to import the module from a specific directory was refactored to use PathFinder, simplifying the implementation.

Signed-off-by: Filipe Laíns <[email protected]

This patch improves environment and platform compatibility
- Data now matches `sysconfig.get_config_vars` after install
- `userbase` now correctly reflects the target platform when cross-compiling
- `test_sysconfigdata_json` now takes into account the following situations:
  - Running with a non-default sys.executable path
  - Running under virtual environments
  - Running under relocatable installs

To simplify the detection of relocatable installs, which needs to look
at `_sysconfigdata_(...)`, this module is now saved in `sys.modules`.
As part of this change, the code to import the module from a specific
directory was refactored to use `PathFinder`, simplifying the
implementation.

Signed-off-by: Filipe Laíns <[email protected]
@FFY00 FFY00 added the skip news label Jan 6, 2025
@FFY00 FFY00 added the 🔨 test-with-buildbots Test PR w/ buildbots; report in status section label Jan 6, 2025
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🤖 New build scheduled with the buildbot fleet by @FFY00 for commit b72a436 🤖

If you want to schedule another build, you need to add the 🔨 test-with-buildbots label again.

@bedevere-bot bedevere-bot removed the 🔨 test-with-buildbots Test PR w/ buildbots; report in status section label Jan 6, 2025
@FFY00 FFY00 added the 🔨 test-with-buildbots Test PR w/ buildbots; report in status section label Jan 6, 2025
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🤖 New build scheduled with the buildbot fleet by @FFY00 for commit 396ac89 🤖

If you want to schedule another build, you need to add the 🔨 test-with-buildbots label again.

@bedevere-bot bedevere-bot removed the 🔨 test-with-buildbots Test PR w/ buildbots; report in status section label Jan 6, 2025
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