Mercurial > cpython-lru_cache-weakref
view Modules/python.c @ 73323:dad02a080bbc
Improve byte-compilation in packaging to be independent of -O or -B.
The code I fixed to comply with PEP 3147 still had one bug: When run
under python -O, some paths for pyc files would be pyo, because I called
imp.cache_from_source without explicit debug_override argument in some
places, and under -O that would return .pyo (this is well explained in
the imp docs). Now all code (util.byte_compile, build_py, install_lib)
can create .pyo files according to options given by users,
without interference from the calling Python’s own optimize mode.
On a related topic, I also removed the code that prevented byte
compilation under python -B. The rationale is that packaging gives
control over the creation of pyc files to the user with its own explicit
option, and the behavior should not be changed if the calling Python
happens to run with -B for whatever reason. I will argue that this is a
bug fix and ask to be allowed to backport this change to distutils.
Finally, I moved one nugget of information about the --compile and
--optimize options from the source into the doc. It clears up a
misunderstanding that I (and maybe other people) had.
| author | Éric Araujo <merwok@netwok.org> |
|---|---|
| date | Thu, 03 Nov 2011 05:08:28 +0100 |
| parents | 3c9232a684ae |
| children | 3b17210f34d9 |
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/* Minimal main program -- everything is loaded from the library */ #include "Python.h" #include <locale.h> #ifdef __FreeBSD__ #include <floatingpoint.h> #endif #ifdef MS_WINDOWS int wmain(int argc, wchar_t **argv) { return Py_Main(argc, argv); } #else #ifdef __APPLE__ extern wchar_t* _Py_DecodeUTF8_surrogateescape(const char *s, Py_ssize_t size); #endif int main(int argc, char **argv) { wchar_t **argv_copy = (wchar_t **)PyMem_Malloc(sizeof(wchar_t*)*argc); /* We need a second copies, as Python might modify the first one. */ wchar_t **argv_copy2 = (wchar_t **)PyMem_Malloc(sizeof(wchar_t*)*argc); int i, res; char *oldloc; /* 754 requires that FP exceptions run in "no stop" mode by default, * and until C vendors implement C99's ways to control FP exceptions, * Python requires non-stop mode. Alas, some platforms enable FP * exceptions by default. Here we disable them. */ #ifdef __FreeBSD__ fp_except_t m; m = fpgetmask(); fpsetmask(m & ~FP_X_OFL); #endif if (!argv_copy || !argv_copy2) { fprintf(stderr, "out of memory\n"); return 1; } oldloc = strdup(setlocale(LC_ALL, NULL)); setlocale(LC_ALL, ""); for (i = 0; i < argc; i++) { #ifdef __APPLE__ argv_copy[i] = _Py_DecodeUTF8_surrogateescape(argv[i], strlen(argv[i])); #else argv_copy[i] = _Py_char2wchar(argv[i], NULL); #endif if (!argv_copy[i]) return 1; argv_copy2[i] = argv_copy[i]; } setlocale(LC_ALL, oldloc); free(oldloc); res = Py_Main(argc, argv_copy); for (i = 0; i < argc; i++) { PyMem_Free(argv_copy2[i]); } PyMem_Free(argv_copy); PyMem_Free(argv_copy2); return res; } #endif
