$ lsb_release -c ; apt-cache show ironpython | grep -m 1 Source Codename: sid Source: dlr-languages (20090805+git.e6b28d27+dfsg-2)
$ lsb_release -c ; apt-cache show ironpython | grep -m 1 Source git.e6b28d27+ dfsg-2)
Codename: sid
Source: dlr-languages (20090805+