Mercurial > cpython-lru_cache-weakref
view Python/frozen.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 | 44fd95cead7b |
| children | 2dd046be2c88 |
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/* Dummy frozen modules initializer */ #include "Python.h" /* In order to test the support for frozen modules, by default we define a single frozen module, __hello__. Loading it will print some famous words... */ /* To regenerate this data after the bytecode or marshal format has changed, go to ../Tools/freeze/ and freeze the flag.py file; then copy and paste the appropriate bytes from M___main__.c. */ static unsigned char M___hello__[] = { 99,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0, 0,64,0,0,0,115,20,0,0,0,100,2,0,90,1,0, 101,2,0,100,0,0,131,1,0,1,100,1,0,83,40,3, 0,0,0,117,12,0,0,0,72,101,108,108,111,32,119,111, 114,108,100,33,78,84,40,3,0,0,0,117,4,0,0,0, 84,114,117,101,117,11,0,0,0,105,110,105,116,105,97,108, 105,122,101,100,117,5,0,0,0,112,114,105,110,116,40,0, 0,0,0,40,0,0,0,0,40,0,0,0,0,117,7,0, 0,0,102,108,97,103,46,112,121,117,8,0,0,0,60,109, 111,100,117,108,101,62,1,0,0,0,115,2,0,0,0,6, 1, }; #define SIZE (int)sizeof(M___hello__) static struct _frozen _PyImport_FrozenModules[] = { /* Test module */ {"__hello__", M___hello__, SIZE}, /* Test package (negative size indicates package-ness) */ {"__phello__", M___hello__, -SIZE}, {"__phello__.spam", M___hello__, SIZE}, {0, 0, 0} /* sentinel */ }; /* Embedding apps may change this pointer to point to their favorite collection of frozen modules: */ struct _frozen *PyImport_FrozenModules = _PyImport_FrozenModules;
