Software sources crashes

Software sources crashes

Software sources crashes when I run it from terminal I get this error:
sudo software-properties-gtk
             Traceback (most recent call last):
      File "/usr/bin/software-properties-gtk", line 38, in <module>
        from softwareproperties.gtk.SoftwarePropertiesGtk import SoftwarePropertiesGtk
      File "/usr/lib/python2.7/dist-packages/softwareproperties/gtk/SoftwarePropertiesGtk.py", line 45, in <module>
        from softwareproperties.SoftwareProperties import SoftwareProperties
      File "/usr/lib/python2.7/dist-packages/softwareproperties/SoftwareProperties.py", line 53, in <module>
        from ppa import AddPPASigningKeyThread, expand_ppa_line
      File "/usr/lib/python2.7/dist-packages/softwareproperties/ppa.py", line 31, in <module>
        import pycurl
    ImportError: librtmp.so.0: cannot open shared object file: No such file or directory

    [1]+  Stopped                 sudo software-properties-gtk
Just upgraded the distribution, it seems like it is broken in some way.