BBX Python: Proof Of Concept

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Short post, since it's late.

Python on the PlayBook. What will be BBX-Python, some day...

So I wrote an app. First time using the Tablet OS Native SDK so lots of learning curve to climb with Momentics (the IDE) and some of its warts. Generally it was way better than I'd expected actually, and the warts are the sort of thing you work around then gradually forget they're even there.

The app for now pretty much consists of the following code:

fprintf(stderr, "py_initialize\n");
Py_VerboseFlag = 1;

// ... other stuff in a loop waiting for the end of the world


There's a bit more to it than that, but nothing that's relevant to the Python aspect. I did have to set up an environment variable to point to the library, so there's an "LD_PRELOAD=/usr/lib/" somewhere, too.

The beautiful thing is that it just worked. Here's the output, courtesy of the one debug line above and the output triggered by the verbose flag:

# installing zipimport hook
import zipimport # builtin
# installed zipimport hook
import encodings # directory /usr/lib/python3.2/encodings
import encodings # precompiled from /usr/lib/python3.2/encodings/__init__.pyc
import codecs # precompiled from /usr/lib/python3.2/codecs.pyc
import _codecs # builtin
import bisect # precompiled from /usr/lib/python3.2/bisect.pyc
dlopen("/usr/lib/python3.2/lib-dynload/", 2);
import _bisect # dynamically loaded from /usr/lib/python3.2/lib-dynload/
dlopen("/usr/lib/python3.2/lib-dynload/", 2);
import _heapq # dynamically loaded from /usr/lib/python3.2/lib-dynload/
import weakref # precompiled from /usr/lib/python3.2/weakref.pyc
import reprlib # precompiled from /usr/lib/python3.2/reprlib.pyc
import _thread # builtin
import _locale # builtin
import encodings.ascii # precompiled from /usr/lib/python3.2/encodings/ascii.pyc

Next step will be to tell it to execute a script with PyEval_EvalCode() or something like that.

Join me on #bbx-python on if you're interested in following this, or add a comment to this post. I'll also be tweeting a bit as @peter9477. Thanks!


As of June 2012, we've renamed this the BlackBerry-Py Project. You can follow news about it at @BBPyProject and the web site has moved too.

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