Python extensions C + + articles

Put a few posts first

Https://eastlakeside.gitbooks.io/interpy-zh/content/c_extensions/swig.html

http://blog.csdn.net/a8572785/article/details/10427521

http://blog.csdn.net/marscrazy_90/article/details/14045683

Hybrid programming has a good balance of performance and development speed, and today we learned three ways Python calls C + + functions

Python uses the C + + extension library in three ways: 1. Use CType 2. Using SWGI 3. Using the PYTHON/C API

The previous two methods did not destroy the source file, and finally there is a way to use the Python struct inside the python.h, all the code is re-encoded, the code can be called Cython, this method is the most common, code efficiency is the highest

The first method uses CType to load DLL files, but for some variable types to be re-declared, such as float,double, if you call yourself

The second method is equivalent to using the SWGI library to generate middleware *.i for the source file, and then build the corresponding DLL file through C + + compilation, rename the DLL file to _*.pyd and then copy the _*.pyd and _.py files to the Python project directory for import to use.

Third method, re-encode the source code

The first and second methods in the PYTHON3.5+VS2015+SWIG3.0.12+WIN10 64-bit system environment are described in detail below

The first method, refer to http://blog.csdn.net/marscrazy_90/article/details/14045683

The second method, refer to http://blog.csdn.net/a8572785/article/details/10427521, but remember to choose release x64 when compiling the DLL and the project----Properties-->c+ +--> python35.lib Python3.lib and other library file names in the linker-to-input entry

At the same time there are two ways to add a library file, the first is to add the directory and library directories in the VC + + directory of the project properties and fill in the file name in the projects----Property-->c++--> linker-----input-to-add dependency item

The second method is to add a C + + directory

Add Project header file directory: Project---Properties---configuration properties---c/C + +---General---Additional Include Directories: Plus header files to store directories.

B. The Lib Static library path for adding file references: Project---Properties---configuration PROPERTIES---linker---general---Additional Library directories: plus lib file directory.
C then add the project reference to the Lib file name: Project---Properties---configuration PROPERTIES---linker---input---Additional dependencies: Add lib file name.

The two methods are different, it is said that the first method is added only to the project is valid, the second method is added after the entire vs within the project is valid

Python extensions for C + + articles