embedded python in c++ packaging

Bronner, Gregory gregory.bronner at lehman.com
Fri Feb 8 01:08:01 CET 2008


I've done this the rather old-fashioned way.
 
Basically, what I do is:
 
Step 1:
 
Embed Python:
  if(!::getenv("PYTHONHOME"))
  {
 ::putenv("PYTHONHOME=<Whatever>");
  }
  if(!::getenv("PYTHONPATH"))
  {
 ::putenv("PYTHONPATH=.");
  }
  
  Py_SetProgramName("leaktester");
  Py_InitializeEx(0);
  init_memoryhoginterface();  // This initializes your SWIG module 
  PyRun_SimpleString("print 'HELLO FROM PYTHON'");  //<--- OR you can do something else here like run a file
 
 
Step 2: 
Extend python to talk back to your C++ code. 
I use one giant SWIG module (see init function above)
 
SWIG allows you to finely control what you expose to python, so you don't wind up exposing the whole C++ API.
 
 

 
 
 
 
 

________________________________

From: Furkan Kuru [mailto:furkankuru at gmail.com] 
Sent: Thursday, February 07, 2008 6:06 PM
To: python-list at python.org
Subject: Re: embedded python in c++ packaging


I do not have access to my development machine right now.
but is it enough adding just a simple line at the top of my main python file 'sys.path.append("modules.zip")' before importing any other modules?
 
On 2/7/08, Gabriel Genellina <gagsl-py2 at yahoo.com.ar> wrote: 

	En Thu, 07 Feb 2008 16:18:57 -0200, Joshua Kugler <jkugler at bigfoot.com>
	escribió:
	> Furkan Kuru wrote:
	>>
	>> I have been developing an application in C++ that embeds Python
	>> interpreter. It takes advantage of too many modules from Python.
	>> When I want to package this application, I need to add too many files
	>> (.pyc) from Python/lib folder together with Python25.dll.
	>> Is there a way to pack these .pyc files to a zip file and redirect
	>> Python25.dll to that zip file?
	>
	> That is effectively what py2exe does with the modules required by the
	> main
	> application.  It takes all the required modules and puts them in a
	> library.zip file.  You might take a look at how it does it.
	
	Using py2exe has an additional advantage, it recursively scans all modules
	looking for dependencies.
	Once you know the required set of modules, you can bundle them in a .zip
	file and add its full path into sys.path (the absolute path including
	filename and .zip extension). Python does look into the .zip searching for
	modules.
	
	--
	Gabriel Genellina
	
	--
	http://mail.python.org/mailman/listinfo/python-list
	




-- 
Furkan Kuru 
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