[yocto] Setting default system python version

[Paul Eggleton]

Hi Diego,

On Friday 23 May 2014 12:45:20 Diego Sueiro wrote:
> Now python3-distutils returns the following on do_compile:
> 
> Log data follows:
> | DEBUG: Executing shell function do_compile
> | 
> | Traceback (most recent call last):
> |   File "setup.py", line 45, in <module>
> |   
> |     exec(init_file.read(), d)
> |   
> |   File "<string>", line 8, in <module>
> |   File
> 
> "/<snip>/tmp/work/cortexa7hf-vfp-vfpv4-neon-poky-linux-gnueabi/python3-distr
> ibute/0.6.32-ml5/distribute-0.6.32/build/src/setuptools/__init__.py", line
> 2, in <module>
> 
> |     from setuptools.extension import Extension, Library
> |   
> |   File
> 
> "/<snip>/tmp/work/cortexa7hf-vfp-vfpv4-neon-poky-linux-gnueabi/python3-distr
> ibute/0.6.32-ml5/distribute-0.6.32/build/src/setuptools/extension.py", line
> 5, in <module>
> 
> |     from setuptools.dist import _get_unpatched
> |   
> |   File
> 
> "/<snip>/tmp/work/cortexa7hf-vfp-vfpv4-neon-poky-linux-gnueabi/python3-distr
> ibute/0.6.32-ml5/distribute-0.6.32/build/src/setuptools/dist.py", line 103
> 
> |     except ValueError, e:
> |                      ^
> | 
> | SyntaxError: invalid syntax
> | ERROR: python3 setup.py build_ext execution failed.
> | WARNING: exit code 1 from a shell command.
> 
> Change the python3-distutils recipe to "inherit distutils" instead "inherit
> distutils3" did the trick.

This is not the right thing to do though. We have these separate classes 
precisely to separate python 3 and python 2, and distutils.bbclass is for 
python 2. In regards to your earlier question, I don't think that we do have a 
central switch for selecting which python version should be included in your 
image - if I'm not mistaken the way our classes have been written, a single 
python module recipe either supports python 2 or 3, so you'd just install the 
version 3 recipes instead of version 2.

Khem, any ideas what could be going wrong here?

Cheers,
Paul

-- 

Paul Eggleton
Intel Open Source Technology Centre