:foo=10

def editpropset(self):
        '''
        :foo=10
        '''

        self.ignore(whitespace)

        if not self.nextstr(':'):
            self._raiseSyntaxExpects(':')

        relp = self.relprop()
        self.ignore(whitespace)

        self.nextmust('=')

        self.ignore(whitespace)

        valu = self.valu()
        return s_ast.EditPropSet(kids=(relp, valu))