This was reported earlier in https://groups.google.com/forum/#!msg/sage-support/F6rDRrU59W8/kVbLWAtZAAAJ;context-place=searchin/sage-support/extra$20$20line
The presumed suspect was the recent update of the IPython underlying the Sage command line. I am also annoyed by this. Your report seems to give a clue to fix it. -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.