I need to import python3 scripts within a scons script. (I use scons v3.0.1.7)
Is there a way to execute scons with python 3 ?
The offical scons site says
This will be the first release to support Python versions earlier than 2.7 as well as 3.5+
Something like scons -python /usr/bin/python3 would be good to select the python interpreter.
I did not find either how to build a scons version for python3.
In the latest versions, SCons supports both Python2 and Python3. There is no need to recompile SCons itself or such. All that matters is which Python version is the default on your system.
You don't mention under which OS you're trying to get this working, so I assume a Linux for now. After the installation you can find the scons script in a location like /usr/local/bin/scons (try "which scons" if in doubt). The first line
#! /usr/bin/env python
tells your system to use the default Python version. If this is not what you want, you can simply change it to e.g.
#! /usr/bin/env python3
if you're under a Python2-default system, but want to run SCons with Python3 instead.