Hello,I'm so sorry that I can't solve your problem.Actually,I'm new to python,and I am poor at c++.So,very sorry. AlstonWilliams

From: jonlederman@gmail.com Date: Wed, 25 May 2016 13:41:57 -0400 To: cplusplus-sig@python.org Subject: [C++-sig] Linking Boost-Python to Python Library in OS X and Anaconda Python 3.5

Hi,

I am having some issues using boost-python on OS X using Anaconda Python 3.5. I am able to build a simple c++ function using boost-python and call it from Python. However, when I create a simple class and call the constructor, I am met with:

In [2]: hello_ext.World() --------------------------------------------------------------------------- TypeError Traceback (most recent call last) <ipython-input-2-514fe5345d15> in <module>() ----> 1 hello_ext.World()

TypeError: __init__() should return None, not ‘NoneType'

From what I understand, this means that I have linked boost-python. against an incompatible version of Python. I thought I had build boost-python correctly (I have built directly using bjam and have tried binaries from Anaconda). However, when I try to see what Python libraries are linked against boost-python, I don’t see any reference to any Python libraries:

boost_python_test Jon$ otool -L /Users/Jon/anaconda/envs/my-env/lib/libboost_python3.dylib /Users/Jon/anaconda/envs/my-env/lib/libboost_python3.dylib: @rpath/./libboost_python3.dylib (compatibility version 0.0.0, current version 0.0.0) /usr/lib/libstdc++.6.dylib (compatibility version 7.0.0, current version 52.0.0) /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 159.1.0)

Shouldn’t a call to otool show me which Python library was linked to boost-python? And, if none is reported what does that mean?

Any help with the above issues would be greatly appreciated.

Thanks.

-Jon _______________________________________________ Cplusplus-sig mailing list Cplusplus-sig@python.org https://mail.python.org/mailman/listinfo/cplusplus-sig