<html><head><style type="text/css"></style></head><body><div style="font-family:times new roman,new york,times,serif;font-size:12pt"><div>conn = libvirt.open("vbox:///session")<br><br>return this error:<br><br>libvir: VBOX error : internal error unable to initialize VirtualBox driver API<br>Traceback (most recent call last):<br> File "prova.py", line 5, in <module><br> conn = libvirt.open("vbox:///session")<br> File "/usr/lib/python2.6/dist-packages/libvirt.py", line 163, in open<br> if ret is None:raise libvirtError('virConnectOpen() failed')<br>libvirt.libvirtError: internal error unable to initialize VirtualBox driver API<br><br>why?<br></div> </div><br> </body></html>