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david.philp_at_[hidden]

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On 15/08/2008, at 4:52 PM, David Philp wrote:
>
> I am trying to write a python extension for the Python that comes  
> with Sage (Sage bundles its own Python).  My user-config.jam is  
> supposed to direct bjam to the Sage version of Python, but whatever  
> I do, it links to the System Python.
>
> I think my configuration is correct, because if I (as root) move the  
> System Python.framework so that bjam cannot find it, I can compile a  
> working extension.  ("Working" in the sense that it can be loaded  
> into Sage's python, and runs perfectly.)
>
> Otherwise (without hiding System Python), the extension compiles  
> just fine, but cannot be loaded into the Sage version of python.   
> When loaded into Sage's python, it fails with "Fatal Python error:  
> Interpreter not initialized (version mismatch?)" which seems  
> reasonable.  The extension can be loaded into the System Python.
>
> Here are the details.  I've used "Sage_root" for the base directory  
> of Sage to make this a bit more readable.  (It is actually /Users/ 
> dphilp/sage-3.0.3.):
> boost 1.35.0
> sage 3.0.3, which contains
> python 2.5.2p2 (slightly patched for sage, and is built using
> --enable-framework=Sage_root/local/Frameworks/Python.framework )
> Everything seems to work fine, Sage's doctests run perfectly, etc.
>
> In user-config.jam (this is overkill, but I wanted to remove any  
> possible ambiguity):
> using python
>  : 2.5
>  : Sage_root/local/Frameworks/Python.framework/Versions/2.5/bin/python
>  : Sage_root/local/Frameworks/Python.framework/Versions/2.5/include/ 
> python2.5
>  : Sage_root/local/Frameworks/Python.framework/Versions/2.5/lib/ 
> python2.5/config ;
>
> bjam --debug-configuration reports that it is using the requested  
> version of python, i.e. the one inside Sage.
>
> Using --with-python=... on the command line does not help.
>
> When I use --debug-building, there is no hint of the System  
> Python.framework anywhere.  But when I run otool -L my_ext.so, it  
> reports that the extension is linked to the System framework---that  
> is, unless I hide the System framework, in which case it reports  
> that it is linked to the Sage framework.
>
> This seems to me to be a bug in bjam, but I would appreciate any  
> help either way.  (Moving the System's python doesn't seem to be a  
> good long term solution!)
>
> Thanks in advance for any answers or redirections.
>
> David
>
>
> ==================================
> David J Philp
> Postdoctoral Fellow
> National Centre for Epidemiology and Population Health
> Building 62, cnr Mills Rd & Eggleston Rd
> The Australian National University
> Canberra ACT 0200 Australia
>
> T: +61 2 6125 8260
> F: +61 2 6125 0740
> M: 0423 535 397
> W: http://nceph.anu.edu.au/
>
> CRICOS Provider #00120C
>
>
>
>
==================================
David J Philp
Postdoctoral Fellow
National Centre for Epidemiology and Population Health
Building 62, cnr Mills Rd & Eggleston Rd
The Australian National University
Canberra ACT 0200 Australia
T: +61 2 6125 8260
F: +61 2 6125 0740
M: 0423 535 397
W: http://nceph.anu.edu.au/
CRICOS Provider #00120C