add support for python2.6 when python taken from standard distribution
add support for python2.6 when python taken from standard distribution

erdincay/gmvault,guaycuru/gmvault,gaubert/gmvault,erdincay/gmvault,gaubert/gmvault,gaubert/gmvault,guaycuru/gmvault,erdincay/gmvault,guaycuru/gmvault