#284 Error while importing pocketsphinx python module

next release

I encounter the following error on importing pocketsphinx python module

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "sphinxbase.pxd", line 138, in init pocketsphinx (pocketsphinx.c:6695)
ValueError: PyCapsule_GetPointer called with invalid PyCapsule object

But when I import pocketsphinx module once again in the same instance of Python interpreter, it works.


  • davedavedave

    I am getting a similar problem

    [myUser@sv-astrisk python]$ ipython
    WARNING: Readline services not available or not loaded.WARNING: The auto-indent feature requires the readline libraryPython 2.7 (r27:82500, Mar 7 2012, 22:44:05)
    Type "copyright", "credits" or "license" for more information.

    IPython 0.12.1 -- An enhanced Interactive Python.
    ? -> Introduction and overview of IPython's features.
    %quickref -> Quick reference.
    help -> Python's own help system.
    object? -> Details about 'object', use 'object??' for extra details.

    In [1]: import sphinxbase

    In [2]: import pocketsphinx

    ValueError Traceback (most recent call last)
    /home/myUser/downloads/sphinx/sphinxbase-0.7/python/<ipython-input-2-fd763eca10d8> in <module>()
    ----> 1 import pocketsphinx

    /home/myUser/.python-eggs/PocketSphinx-0.7-py2.7-linux-i686.egg-tmp/pocketsphinx.so in <module>()

    /home/myUser/.python-eggs/PocketSphinx-0.7-py2.7-linux-i686.egg-tmp/pocketsphinx.so in bootstrap()

    /home/myUser/.python-eggs/PocketSphinx-0.7-py2.7-linux-i686.egg-tmp/pocketsphinx.so in init pocketsphinx (pocketsphinx.c:6844)()

    ValueError: PyCapsule_GetPointer called with invalid PyCapsule object

    In [3]:

  • davedavedave

    I would be happy to help troubleshoot this, please let me know if I can supply any other information.

  • davedavedave

    This error occured for me when running python 2.7.3
    I installed python 2.6.8, recompiled sphinx base 0.7 and pocketsphinx 0.7 (make clean first) and ./configure --with-python=/path/to/python2.6/bin/python
    This seems to have fixed the problem for the time being.

  • This is unlikely a pocketsphinx problem. Something got broken on python or cython. If you want to help go to cython developers and ask them what is going on.


  • Anonymous

    The C source files emitted by Cython need to be regenerated and then sphinxbase and pocketsphinx need to be rebuilt to correct the exception on import.

    Delete 'python/sphinxbase.c' from the sphinxbase source directory and delete 'python/pocketsphinx.c' from the pocketsphinx source directory. Make sure Cython is installed so these files can be regenerated.

    Next, just ./configure, make clean all, and make install as outlined in each README. Your version of Cython will be invoked to regenerate the files you deleted.

    Last edit: Anonymous 2014-04-06
  • Jose Rodriguez
    Jose Rodriguez

    Thanks, Anonymous. I was experiencing this issue and your solution worked for me! :)

    Last edit: Jose Rodriguez 2013-03-11
  • iksobert

    Also don't forget that if you ran

    python setup.py install

    prior to removing the files as stated above, you will have to run that again after recompiling.

  • heinrich tsien
    heinrich tsien

    I encountered a similar problem (Windows 7 64-bit, Python 2.7.3 32-bit).

    Following the steps proposed by Anonymous, import ok now.

    However, just like
    when trying to decode_raw(), Python crashed without any info.

    What could be the possible reason?

    BTW, this is the first time I compile a python package from source. Are there pre-compiled binaries for the python binding of pocketsphinx in Windows?

    Thanks for any information.

    Last edit: heinrich tsien 2013-04-15
    • status: open --> closed
    • Group: --> next release
  • Sphinxbase and Pocketsphinx are now using SWIG instead of Cython. So this bug is not relevant anymore.

  • Animesh Pandey
    Animesh Pandey

    I am having the same PyCapsule error when importing pocketsphinx on windows. I have Python 2.7.3, Windows 7 32 Bit and I have installed sphinxbase 0.8 and pocketsphinx 0.8 using Visual Studio 2010 and there were no errors during the compilation of the source.
    Regarding the regeneration of C source using Cython, how am I supposed to that on Windows?

  • William Maio
    William Maio

    Hello, I tried what Anonymous described in https://sourceforge.net/p/cmusphinx/bugs/284/#b6ea
    But I am still getting the same error. I am using Mac OSX 10.9.2

    import pocketsphinx
    Traceback (most recent call last):
    File "<stdin>", line 1, in <module>
    File "build/bdist.macosx-10.9-x86_64/egg/pocketsphinx.py", line 7, in <module>
    File "build/bdist.macosx-10.9-x86_64/egg/pocketsphinx.py", line 6, in bootstrap
    File "sphinxbase.pxd", line 150, in init pocketsphinx (pocketsphinx.c:7935)
    ValueError: PyCapsule_GetPointer called with invalid PyCapsule object

    • Hello William

      The fix will be available in the next release. If you want to access it now, you need to checkout development version from subversion or download a snapshot from github: