Hi all, I'm observing the following behavior with latest (git-fetched today) pycuda and opencl versions on Snow Leopard 10.6.4: $ python >>> import pycuda.driver >>> import pyopencl Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/Library/Python/2.6/site-packages/pyopencl-0.92beta-py2.6-macosx-10.6-i386.egg/pyopencl/__init__.py", line 3, in <module> import pyopencl._cl as _cl AttributeError: 'NoneType' object has no attribute '__dict__' $ python >>> import pyopencl >>> import pycuda.driver Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/Library/Python/2.6/site-packages/pycuda-0.94rc-py2.6-macosx-10.6-i386.egg/pycuda/driver.py", line 1, in <module> from _driver import * AttributeError: 'NoneType' object has no attribute '__dict__' This worked with stable versions. Does anyone know why is this happening? (One may ask why do I need both libraries in the same program. I have the set of tests for my module, which can use both Cuda and OpenCL, and it is convenient to run all the tests using the single file. Although it is not a critical issue, I'm just curious).

On Fri, Sep 10, 2010 at 12:18 AM, Andreas Kloeckner <lists(a)informa.tiker.net&gt; wrote: > Are you using the shipped version of Boost in both libraries? If so, > that might present an issue. Yep, in both. Does it behave in the same way on your system?

Are you using the shipped version of Boost in both libraries? If so, that might present an issue. Andreas