def get_separator(self, i):
        """Return the separator that preceding format i, or '' for i == 0."""
        return i and self.separator[min(i - 1, len(self.separator) - 1)] or ''
def get_separator(self, i):
        
        return i and self.separator[min(i - 1, len(self.separator) - 1)] or ''
def get_separator ( self , i ) : return i and self . separator [ min ( i - 1 , len ( self . separator ) - 1 ) ] or ''
Return the separator that preceding format i, or '' for i == 0.
Return the separator that preceding format i or for i == 0 .