[C++-sig] Linking Boost-Python to Python Library in OS X and Anaconda Python 3.5

[逄淑越]

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 at gmail.com
> Date: Wed, 25 May 2016 13:41:57 -0400
> To: cplusplus-sig at 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
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