Python interface to blobs and blob data through boost::python

[longjon]

This is the Python blob interface as it stands. If you'd rather not touch blob.hpp (which I think is reasonable), I think that can be accomplished by switching from inheritance to composition for CaffeBlob, and writing a few more wrappers.

[shelhamer]

I'm interested in merging this but your PR mentions changes to blob.hpp yet the commits in this branch don't touch it. Are there still changes to commit?

[longjon]

I just today updated this to confine the changes to pycaffe.cpp and to expose diff as well as data and params as well as blobs. (I assumed that github would link this PR to a particular commit, but I guess it links to a branch name.) So, yes, there are still changes to commit, and feel free to pull them if you see fit, as I think previous reservations have been addressed.

[shelhamer]

I checked this out and everything compiles but the python wrapper segfaults instantly. Are there any lingering commits you need to push to your branch?

[longjon]

Hm, it works for me on ICSI (although I did have to fiddle my path to avoid a SIGABRT caused by a protobuf version mismatch). Where are you building? You get a segfault on import of pycaffe?

[shelhamer]

Ok, it could just be my error. Import is fine, but Caffe calls segfault.
I'll check my dims-assume I just screwed up for now.

Le mercredi 15 janvier 2014, longjon notifications@github.com a écrit :

Hm, it works for me on ICSI (although I did have to fiddle my path to
avoid a SIGABRT caused by a protobuf version mismatch). Where are you
building? You get a segfault on import of pycaffe?

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[shelhamer]

Thanks for the wrapper enhancement! (Problems were from miscellaneous build issues on my end–the code was fine.)