code: def unsafe(self):
          
          (scheme, netloc, path, params, query, frag) = urlparse(self.src_uri)
          if (scheme != ''):
              return(False)
          s = os.path.normpath(self.src_uri)
          d = os.path.normpath(self.dst_path)
          lcp = os.path.commonprefix([s, d])
          return(s == lcp or d == lcp)
docs: True if the mapping is unsafe for an update.
  
          Applies only to local source. Returns True if the paths for source and
          destination are the same, or if one is a component of the other path.