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bpo-43372: Use _freeze_importlib for regen-frozen. #24759

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Merged
merged 1 commit into from
Mar 6, 2021

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nascheme
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@nascheme nascheme commented Mar 5, 2021

This approach ensures the code matches the interpreter version.
Previously, PYTHON_FOR_REGEN was used to generate the code, which might
be wrong. The marshal format for code objects has changed with
bpo-42246, commit 877df85. Update the code and the expected code sizes
in ctypes test_frozentable.

https://bugs.python.org/issue43372

This approach ensures the code matches the interpreter version.
Previously, PYTHON_FOR_REGEN was used to generate the code, which might
be wrong. The marshal format for code objects has changed with
bpo-42246, commit 877df85. Update the code and the expected code sizes
in ctypes test_frozentable.
5,112,114,105,110,116,169,0,114,1,0,0,0,114,1,0,
0,0,122,14,60,102,114,111,122,101,110,32,104,101,108,108,
111,62,218,8,60,109,111,100,117,108,101,62,1,0,0,0,
115,6,0,0,0,4,0,12,1,255,128,
};
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I don't understand why the file is suddenly so different when in the previous pull requests, only one line was updated.

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@nascheme nascheme Mar 5, 2021

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I think it's because the co_filename has changed. _freeze_importlib sets it to "<frozen hello>". Previously it was set to "none".

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Oh, and _freeze_importlib line wraps the byte array a bit differently.

218,8,60,109,111,100,117,108,101,62,1,0,0,
0,115,2,0,0,0,4,1,
/* Auto-generated by Programs/_freeze_importlib.c */
const unsigned char _Py_M__hello[] = {
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Not sure making this non-static is good. The _freeze_importlib could grow a command line option to make it static or non-static.

@nascheme nascheme merged commit 87ec26b into python:master Mar 6, 2021
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4 participants