Path: csiph.com!fu-berlin.de!uni-berlin.de!not-for-mail
From: Terry Reedy <tjreedy@udel.edu>
Newsgroups: comp.lang.python
Subject: Re: Manipulate GIL to have Python thread work with pthread native ones
Date: Tue, 31 May 2016 12:31:09 -0400
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Xref: csiph.com comp.lang.python:109287

On 5/31/2016 1:16 AM, qshhnkf@alumni.sjtu.edu.cn wrote:
> Hi Python experts,
>
> I need to extend Python with C/C++ to interact with an in-house
> legacy API. I'm implementing a data subscriber with Python, which
> subscribes to a data publisher (actually a ZeroMQ publisher socket)
> and will get notified once any new messages are fed. In my
> subscriber, the messages are dumped to a data processor after
> received. The subscriber will also get notified by the processor when
> done. Since the data processor is written in C++, I have to extend
> the Python code with a simple C++ module.

A couple of options you may not have considered.  A. Run the C++ module 
in a subprocess.  Pass data either in pipes or files.  B. Compile the 
C++ module to a shared library and access via ctype module.

-- 
Terry Jan Reedy