__init__.py 文件源码

def visit_GeneratorExp(self, node):
        """
        GeneratorExp(expr elt, comprehension* generators)
        """
        #if isinstance(node.generators[0].iter, (ast.Tuple, ast.List)):
        #    i = "[%s]" % self.visit(node.generators[0].iter)
        #else:
        #    i = self.visit(node.generators[0].iter)
        i = self.visit(node.generators[0].iter) # ast.Tuple, ast.List, ast.*
        t = self.visit(node.generators[0].target)
        """ <Python> [x**2 for x in [1,2]]
            <Ruby>   [1, 2].map{|x| x**2}  """
        return "%s.map{|%s| %s}" % (i, t, self.visit(node.elt))