Re: [Discuss-gnuradio] [GREP] Replace SWIG

[Martin Braun]

Here's a summary of of comments that have come up in chat:

- Andrej recommended using PyBind11, a close cousin to boost.python. it comes recommended by Sebastian Koslowski also. It's only a few headers and we could ship it as part of the source tree.

- The question arose if we even need the python bindings as part of the standard install. Personally I think we do, installing GNU Radio from source should simply give you all the features. But it's a good thing to discuss.

- Another comment was that we could simply have c bindings and then use those for python. The general consensus around that was that we can treat the C++/Python interface specially, given its importance and tradition. C bindings can be discussed separately.

-- M

On Thu, 27 Dec 2018, 13:58 Martin Braun <address@hidden wrote:

Hi all,

https://github.com/gnuradio/greps/blob/master/grep-0015-remove-swig.md

this might be the craziest GREP yet: How about we kill SWIG as a dependency? Note: We don't want to remove functionality, and we love our Python bindings. But, could we do better? SWIG slows down our compilers, creates hundreds of kB of source code, and we don't really know what it does.

On the other hand, that's because it solves a very complex problem: We point it at headers, and it auto-creates Python libraries for us.

And of course, changing this would most likely cause some code to become no longer compatible with GNU Radio.

Discuss!

-- Martin

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