#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

    davedavedave - 2012-04-30

    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

    davedavedave - 2012-04-30

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

  • davedavedave

    davedavedave - 2012-04-30

    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.

  • Nickolay V. Shmyrev

    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.

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    Anonymous - 2012-08-06

    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 2016-09-27
  • Jose Rodriguez

    Jose Rodriguez - 2013-03-11

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

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

    iksobert - 2013-03-14

    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 - 2013-04-14

    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
  • Nickolay V. Shmyrev

    • status: open --> closed
    • Group: --> next release
  • Nickolay V. Shmyrev

    Sphinxbase and Pocketsphinx are now using SWIG instead of Cython. So this bug is not relevant anymore.

  • Animesh Pandey

    Animesh Pandey - 2014-01-07

    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 - 2014-05-22

    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

    • Nickolay V. Shmyrev

      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:



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