Hi, I did a very trivial hack to soft link /opt/local/bin/python (which itself is linked to /opt/local/bin/python2.6, which in turn is soft linked to /opt/local/Library/Fraemworks/Python.framework/Versions/2.6/bin/python2.6) to /usr/bin/python. So now "which python" gives me /opt/local/bin/python, but as I expected this didnt solve the problem with yaml. Thanks, S.