issue with osmo-sim-auth

hello, i ran into an issue with osmo-sim-auth. if i try ./osmo-sim-auth.py -r 00000000000000000000000000000000 -s it says Traceback (most recent call last):   File "./osmo-sim-auth.py", line 27, in <module>     from card.USIM import USIM   File "/usr/src/osmo-sim-auth/card/USIM.py", line 56     print '[DBG] type definition: %s' % type(self)           ^ SyntaxError: invalid syntax do you know what the problem is? i think i installed pcsc-lite, pcscd and pyscard and dependencies. thank you