(self, other)
return self + And._ErrorStop() + other
Implementation of - operator, returns :class:`And` with error stop
Implementation of - operator, returns :class:`And` with error stop
Implementation of - operator returns : class : And with error stop
def __sub__(self, other):
        """
        Implementation of - operator, returns :class:`And` with error stop
        """
        if isinstance( other, basestring ):
            other = ParserElement._literalStringClass( other )
        if not isinstance( other, ParserElement ):
            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
                    SyntaxWarning, stacklevel=2)
            return None
        return self + And._ErrorStop() + other
def __sub__ ( self , other ) : if isinstance ( other , basestring ) : other = ParserElement . _literalStringClass ( other ) if not isinstance ( other , ParserElement ) : warnings . warn ( "Cannot combine element of type %s with ParserElement" % type ( other ) , SyntaxWarning , stacklevel = 2 ) return None return self + And . _ErrorStop ( ) + other