Neal Becker
I'm not quite clear on your procedure. Adding python=2.7 to command line(having modified user-config.jam as described):
/usr/local/src/boost_1_54_0.python3/tools/build/v2/build/feature.jam:493: in feature.validate-value-string from module feature error: "2.7" is not a known value of feature <python> error: legal values: "3.3"
Hmm, I use locally-bootstrapped ./d2, and I now see that the bootstrap script itself creates project-config.jam with the following line: using python : 2.7 : /usr ; So, that explain why my adding Python 3 actually _added_ Python 3, not replaced the system one. Python 2 comes from another file... My guess is that if you add both pythons to user-config.jam, the effect would be the same. Thanks, PM