python SyntaxError: invalid syntax

E:\opensource_codes\semi-auto-anno\src>python main_blender_semiauto.py
Traceback (most recent call last):
  File "main_blender_semiauto.py", line 15, in <module>
    from semiautoanno import SemiAutoAnno
  File "E:\opensource_codes\semi-auto-anno\src\semiautoanno.py", line 116
    print "Recalculate cache. Cache has {} and samples are {}.".format(self.Ri.shape[0], self.numSamples)
                                                              ^
SyntaxError: invalid syntax