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bpo-46608: exclude marshalled-frozen data if deep-freezing to save 300 KB space (GH-31074)

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This reduces the size of the data segment by **300 KB** of the executable because if the modules are deep-frozen then the marshalled frozen data just wastes space. This was inspired by comment by @gvanrossum in https://github.com/python/cpython/pull/29118#issuecomment-958521863. Note: There is a new option `--deepfreeze-only` in `freeze_modules.py` to change this behavior, it is on be default to save disk space.
```console 
# du -s ./python before
27892   ./python
# du -s ./python after
27524   ./python
```

Automerge-Triggered-By: GH:ericsnowcurrently
This commit is contained in:
Kumar Aditya 2022-02-04 23:27:03 +05:30 • committed by GitHub
parent 9b4e3d94a5
commit bf95ff91f2
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9 changed files with 87 additions and 84 deletions
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Doc/c-api/import.rst
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@ -256,8 +256,12 @@ Importing Modules
const char *name;
const unsigned char *code;
int size;
bool is_package;
};
.. versionchanged:: 3.11
The new ``is_package`` field indicates whether the module is a package or not.
This replaces setting the ``size`` field to a negative value.
.. c:var:: const struct _frozen* PyImport_FrozenModules