kar@myhost ~ % backintime
  File "/usr/share/backintime/common/backintime.py", line 73
    print ''
           ^
SyntaxError: invalid syntax

kar@myhost ~ % backintime-kde4
Traceback (most recent call last):
  File "/usr/share/backintime/kde4/app.py", line 34, in <module>
    import backintime
  File "/usr/share/backintime/common/backintime.py", line 25, in <module>
    import config
  File "/usr/share/backintime/common/config.py", line 32, in <module>
    import password
  File "/usr/share/backintime/common/password.py", line 25, in <module>
    import keyring
ImportError: No module named keyring