SconsVersion

Ah! We don't really have a defined, public interface for this. We should have. In the meantime, you can use:

import SCons
print SCons.__version__

(Where, of course, you can do whatever you like with the SCons.__version__ string, not just print it.)

If you are looking to ensure a certain version of SCons, use:

EnsureSConsVersion()

You use it thusly: EnsureSConsVersion(0, 96, 93)

Credits: StevenKnight, TaybinRutkin