akozumpl/dnf — pull request #53 by jsilhan (2013-11-22 14:06:40+00:00)
Title: JSON decode error in persistor.py (RhBug:1032455)

I don't know in which case can error occur, when existence and validity of file is checked everytime you call get_expired_repos() or set_expired_repos(). This should fix this if it somehow ever happen again.