mirror of https://github.com/python/cpython
3f2d10132d
* The struct module now requires contiguous buffers.
* Convert most functions and methods of the _struct module to Argument Clinic
* Use "Py_buffer" type for the "buffer" argument. Argument Clinic is
responsible to create and release the Py_buffer object.
* Use "PyStructObject *" type for self to avoid explicit conversions.
* Add an unit test on the _struct.Struct.unpack_from() method to test passing
arguments as keywords.
* Rephrase docstrings.
* Rename "fmt" argument to "format" in docstrings and the documentation.
As a side effect, functions and methods which used METH_VARARGS calling
convention like struct.pack() now use the METH_FASTCALL calling convention
which avoids the creation of temporary tuple to pass positional arguments and
so is faster. For example, struct.pack("i", 1) becomes 1.56x faster (-36%)::
$ ./python -m perf timeit \
-s 'import struct; pack=struct.pack' 'pack("i", 1)' \
--compare-to=../default-ref/python
Median +- std dev: 119 ns +- 1 ns -> 76.8 ns +- 0.4 ns: 1.56x faster (-36%)
Significant (t=295.91)
Patch co-written with Serhiy Storchaka.
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|---|---|---|
| .. | ||
| _asynciomodule.c.h | ||
| _bz2module.c.h | ||
| _codecsmodule.c.h | ||
| _cryptmodule.c.h | ||
| _cursesmodule.c.h | ||
| _datetimemodule.c.h | ||
| _dbmmodule.c.h | ||
| _elementtree.c.h | ||
| _gdbmmodule.c.h | ||
| _hashopenssl.c.h | ||
| _lzmamodule.c.h | ||
| _opcode.c.h | ||
| _operator.c.h | ||
| _pickle.c.h | ||
| _sre.c.h | ||
| _ssl.c.h | ||
| _struct.c.h | ||
| _tkinter.c.h | ||
| _weakref.c.h | ||
| _winapi.c.h | ||
| arraymodule.c.h | ||
| audioop.c.h | ||
| binascii.c.h | ||
| cmathmodule.c.h | ||
| fcntlmodule.c.h | ||
| grpmodule.c.h | ||
| mathmodule.c.h | ||
| md5module.c.h | ||
| posixmodule.c.h | ||
| pwdmodule.c.h | ||
| pyexpat.c.h | ||
| sha1module.c.h | ||
| sha256module.c.h | ||
| sha512module.c.h | ||
| signalmodule.c.h | ||
| spwdmodule.c.h | ||
| unicodedata.c.h | ||
| zlibmodule.c.h | ||